{"id":1845,"date":"2026-07-30T21:00:00","date_gmt":"2026-07-30T12:00:00","guid":{"rendered":"https:\/\/blog.nexive.tech\/?p=1845"},"modified":"2026-07-30T18:57:58","modified_gmt":"2026-07-30T09:57:58","slug":"oracle-explain-plan-slow-sql-check","status":"publish","type":"post","link":"https:\/\/blog.nexive.tech\/?p=1845","title":{"rendered":"Oracle\u306e\u9045\u3044SQL\u306f\u3069\u3053\u3092\u898b\u308b\uff1f\u5b9f\u884c\u8a08\u753b\u3068\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u78ba\u8a8d\u30dd\u30a4\u30f3\u30c8"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">\u696d\u52d9\u30b7\u30b9\u30c6\u30e0\u306e\u4fdd\u5b88\u3067\u300c\u3053\u306e\u753b\u9762\u304c\u9045\u3044\u300d\u300c\u3053\u306e\u691c\u7d22\u3060\u3051\u8fd4\u3063\u3066\u3053\u306a\u3044\u300d\u3068\u8a00\u308f\u308c\u308b\u3068\u3001\u307e\u305aSQL\u3092\u89e6\u308a\u305f\u304f\u306a\u308a\u307e\u3059\u3002 WHERE\u53e5\u3092\u8db3\u3059\u3001SELECT\u53e5\u3092\u524a\u308b\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8db3\u3059\u3002 \u3069\u308c\u3082\u5019\u88dc\u306b\u306f\u306a\u308a\u307e\u3059\u304c\u3001\u9806\u756a\u3092\u9593\u9055\u3048\u308b\u3068\u3001\u76f4\u3057\u305fSQL\u306e\u88cf\u3067\u5225\u306e\u691c\u7d22\u6761\u4ef6\u3092\u9045\u304f\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u521d\u306b\u898b\u308b\u306e\u306f\u3001SQL\u306e\u5f62\u3060\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u5bfe\u8c61\u30c7\u30fc\u30bf\u306e\u4ef6\u6570\u3001\u691c\u7d22\u6761\u4ef6\u306e\u5e83\u3055\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u6709\u7121\u3001\u305d\u3057\u3066Oracle\u304c\u3069\u3046\u8aad\u3082\u3046\u3068\u3057\u3066\u3044\u308b\u304b\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oracle\u3067\u9045\u3044SQL\u3092\u8abf\u3079\u308b\u306a\u3089\u3001<code>EXPLAIN PLAN FOR<\/code> \u3068 <code>DBMS_XPLAN.DISPLAY()<\/code> \u3067\u5b9f\u884c\u8a08\u753b\u3092\u53d6\u308a\u307e\u3059\u3002 \u305d\u3053\u304b\u3089 <code>TABLE ACCESS FULL<\/code>\u3001<code>INDEX RANGE SCAN<\/code>\u3001<code>Rows<\/code>\u3001<code>Predicate Information<\/code> \u3092\u9806\u756a\u306b\u898b\u307e\u3059\u3002 <span class=\"swl-marker mark_yellow\">\u5b9f\u884c\u8a08\u753b\u306f\u3001SQL\u3092\u66f8\u304d\u63db\u3048\u308b\u524d\u306b\u300c\u3069\u3053\u3067\u591a\u304f\u8aad\u3093\u3067\u3044\u308b\u304b\u300d\u3092\u898b\u308b\u305f\u3081\u306e\u78ba\u8a8d\u6750\u6599\u3067\u3059\u3002<\/span><\/p>\n\n\n\n<div style=\"border-color:#caecec;border-width:1px;border-style:solid;border-radius:8px;background-color:#f2fbfb;margin-top:1.8em;margin-bottom:2em;padding:16px 18px\"><p style=\"line-height:2;margin:0\">\u9045\u3044SQL\u306e\u8abf\u67fb\u3067\u306f\u3001\u307e\u305a\u8aad\u3080\u91cf\u3068\u6761\u4ef6\u306e\u52b9\u304d\u65b9\u3092\u898b\u307e\u3059\u3002\u4ef6\u6570\u3001\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u3001Predicate Information\u3092\u4e26\u3079\u308b\u3068\u3001SQL\u3092\u66f8\u304d\u63db\u3048\u308b\u7406\u7531\u304c\u8aac\u660e\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u984c\u6750\u306f\u3001\u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u9867\u5ba2\u3068\u6ce8\u6587\u65e5\u306e\u6761\u4ef6\u3067\u6ce8\u6587\u3092\u691c\u7d22\u3059\u308bSQL\u3067\u3059\u3002 \u30c6\u30fc\u30d6\u30eb\u540d\u3084\u5217\u540d\u304c\u9055\u3063\u3066\u3082\u3001\u6700\u521d\u306b\u898b\u308b\u9806\u756a\u306f\u3042\u307e\u308a\u5909\u308f\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u884c\u8a08\u753b\u3092\u898b\u308b\u524d\u306e\u5207\u308a\u5206\u3051<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u9045\u3044\u306e\u304cSQL\u5358\u4f53\u306a\u306e\u304b\u51e6\u7406\u5168\u4f53\u306a\u306e\u304b\u3092\u5206\u3051\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u753b\u9762\u304c\u9045\u3044\u3068\u805e\u3044\u3066\u3001\u3059\u3050\u5bfe\u8c61SQL\u3060\u3051\u3092\u898b\u308b\u3068\u5916\u3057\u307e\u3059\u3002 \u753b\u9762\u5074\u306e\u521d\u671f\u8868\u793a\u3001API\u306e\u5f85\u3061\u6642\u9593\u3001\u30d5\u30a1\u30a4\u30eb\u51fa\u529b\u3001\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3001\u5225SQL\u306e\u30eb\u30fc\u30d7\u5b9f\u884c\u304c\u6df7\u3056\u308b\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u307e\u305a\u3001\u9045\u3044SQL\u30921\u672c\u306b\u7d5e\u308a\u307e\u3059\u3002 \u753b\u9762\u691c\u7d22\u306a\u3089\u3001\u3069\u306e\u691c\u7d22\u6761\u4ef6\u3067\u9045\u3044\u306e\u304b\u3002 \u5e33\u7968\u306a\u3089\u3001\u51fa\u529b\u524d\u306e\u96c6\u8a08SQL\u306a\u306e\u304b\u3001\u660e\u7d30\u53d6\u5f97SQL\u306a\u306e\u304b\u3002 \u30d0\u30c3\u30c1\u306a\u3089\u3001\u4f55\u4ef6\u76ee\u304b\u3089\u9045\u304f\u306a\u308b\u306e\u304b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3092\u66d6\u6627\u306b\u3057\u305f\u307e\u307e\u5b9f\u884c\u8a08\u753b\u3092\u898b\u308b\u3068\u3001\u9055\u3046SQL\u306e\u8a08\u753b\u3092\u8aad\u3093\u3067\u3057\u307e\u3044\u307e\u3059\u3002 \u78ba\u8a8d\u3067\u306f\u3001\u5b9f\u884c\u3057\u305fSQL\u3001\u30d0\u30a4\u30f3\u30c9\u5024\u3001\u5b9f\u884c\u3057\u305f\u65e5\u6642\u3001\u5bfe\u8c61\u74b0\u5883\u3092\u30bb\u30c3\u30c8\u3067\u6b8b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_orange\"><strong>\u300c\u691c\u7d22\u304c\u9045\u3044\u300d\u3060\u3051\u3067\u306f\u3001\u5b9f\u884c\u8a08\u753b\u3092\u898b\u308b\u5bfe\u8c61\u304c\u6c7a\u307e\u308a\u307e\u305b\u3093<\/strong><\/span> \u307e\u305a\u3001\u9045\u3044SQL\u30921\u672c\u306b\u7d5e\u308b\u3068\u3053\u308d\u304b\u3089\u59cb\u3081\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8fd4\u3059\u4ef6\u6570\u3068\u8aad\u3080\u4ef6\u6570\u306e\u5dee\u3092\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b21\u306f\u3001\u6761\u4ef6\u3067\u3069\u306e\u304f\u3089\u3044\u7d5e\u308c\u3066\u3044\u308b\u304b\u3067\u3059\u3002 \u691c\u7d22\u7d50\u679c\u304c20\u4ef6\u3067\u3082\u3001\u88cf\u5074\u306710\u4e07\u4ef6\u8aad\u3093\u306720\u4ef6\u306b\u3057\u3066\u3044\u308b\u306a\u3089\u9045\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3068\u3048\u3070\u3001\u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\u3092\u9867\u5ba2ID\u3068\u6ce8\u6587\u65e5\u3067\u691c\u7d22\u3057\u3066\u3044\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT\n    order_id,\n    customer_id,\n    order_date,\n    total_amount\nFROM\n    orders\nWHERE\n    customer_id = 1001\n    AND order_date >= DATE '2026-07-01';<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_date,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    total_amount<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    orders<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> order_date <\/span><span style=\"color: #81A1C1\">&gt;=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">DATE<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2026-07-01<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306eSQL\u3092\u898b\u308b\u524d\u306b\u3001\u5bfe\u8c61\u30c6\u30fc\u30d6\u30eb\u306e\u4ef6\u6570\u3068\u6761\u4ef6\u306b\u5408\u3046\u4ef6\u6570\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT COUNT(*) AS total_count\nFROM orders;\n\nSELECT COUNT(*) AS matched_count\nFROM orders\nWHERE customer_id = 1001\n  AND order_date >= DATE '2026-07-01';<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">COUNT<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">AS<\/span><span style=\"color: #D8DEE9FF\"> total_count<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><span style=\"color: #D8DEE9FF\"> orders;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #88C0D0\">COUNT<\/span><span style=\"color: #D8DEE9FF\">(<\/span><span style=\"color: #81A1C1\">*<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">AS<\/span><span style=\"color: #D8DEE9FF\"> matched_count<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><span style=\"color: #D8DEE9FF\"> orders<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><span style=\"color: #D8DEE9FF\"> customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> order_date <\/span><span style=\"color: #81A1C1\">&gt;=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">DATE<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2026-07-01<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5168\u4f53\u304c200\u4e07\u4ef6\u3067\u3001\u6761\u4ef6\u306b\u5408\u3046\u884c\u304c120\u4ef6\u306a\u3089\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3067\u7d5e\u308b\u4fa1\u5024\u304c\u3042\u308a\u307e\u3059\u3002 \u53cd\u5bfe\u306b\u3001\u6761\u4ef6\u306b\u5408\u3046\u884c\u304c150\u4e07\u4ef6\u306a\u3089\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u3082\u8aad\u307f\u53d6\u308a\u91cf\u306f\u5927\u304d\u3044\u307e\u307e\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\">\u9045\u3044SQL\u3067\u306f\u3001\u8fd4\u3059\u4ef6\u6570\u3060\u3051\u3067\u306a\u304f\u3001\u8aad\u3080\u53ef\u80fd\u6027\u304c\u3042\u308b\u4ef6\u6570\u3092\u898b\u308b<\/span>\u306e\u304c\u5148\u3067\u3059\u3002 \u753b\u9762\u306b20\u4ef6\u3057\u304b\u51fa\u3066\u3044\u306a\u304f\u3066\u3082\u3001\u5185\u90e8\u3067\u5927\u91cf\u306b\u8aad\u3093\u3067\u3044\u308b\u306a\u3089\u3001SQL\u306e\u898b\u3048\u65b9\u306f\u307e\u3063\u305f\u304f\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30d0\u30a4\u30f3\u30c9\u5024\u3084\u65e5\u4ed8\u7bc4\u56f2\u3082\u540c\u3058\u6761\u4ef6\u3067\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u540c\u3058SQL\u3067\u3082\u3001\u6307\u5b9a\u3059\u308b\u5024\u3067\u5b9f\u884c\u8a08\u753b\u306f\u5909\u308f\u308a\u307e\u3059\u3002 \u9867\u5ba2ID\u3001\u90e8\u9580\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u3001\u65e5\u4ed8\u7bc4\u56f2\u306e\u5e83\u3055\u306b\u3088\u3063\u3066\u3001\u5bfe\u8c61\u4ef6\u6570\u304c\u5909\u308f\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u300c\u6628\u65e5\u306f\u9045\u304b\u3063\u305f\u304c\u4eca\u65e5\u306f\u901f\u3044\u300d\u3068\u3044\u3046\u76f8\u8ac7\u3067\u306f\u3001SQL\u6587\u3060\u3051\u3092\u898b\u3066\u3082\u8db3\u308a\u307e\u305b\u3093\u3002 \u6628\u65e5\u6307\u5b9a\u3057\u305f\u65e5\u4ed8\u7bc4\u56f2\u3001\u9867\u5ba2ID\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -circle\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/blog.nexive.tech\/wp-content\/uploads\/2026\/05\/concern-150x150.png\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">tomo<\/span><\/div><div class=\"c-balloon__body -speaking -border-on\"><div class=\"c-balloon__text\">\n<p>SQL\u672c\u6587\u3060\u3051\u3092\u6b8b\u3057\u3066\u3001\u30d0\u30a4\u30f3\u30c9\u5024\u3092\u6b8b\u3057\u3066\u3044\u306a\u3044\u8abf\u67fb\u30e1\u30e2\u306f\u56f0\u308a\u307e\u3059\u3002\u540c\u3058SQL\u3067\u3082\u3001\u5024\u304c\u9055\u3048\u3070\u4ef6\u6570\u3082\u5b9f\u884c\u8a08\u753b\u3082\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u78ba\u8a8d\u30e1\u30e2\u306b\u306f\u3001SQL\u672c\u6587\u3068\u4e00\u7dd2\u306b\u5b9f\u884c\u6761\u4ef6\u3092\u66f8\u304d\u307e\u3059\u3002 \u65e5\u4ed8\u7bc4\u56f2\u304c1\u65e5\u306a\u306e\u304b1\u5e74\u306a\u306e\u304b\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u304c1\u3064\u306a\u306e\u304b\u5168\u4ef6\u76f8\u5f53\u306a\u306e\u304b\u3067\u3001\u5224\u65ad\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Oracle\u3067\u5b9f\u884c\u8a08\u753b\u3092\u53d6\u5f97\u3059\u308b<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">EXPLAIN PLAN FOR\u3067\u78ba\u8a8d\u5bfe\u8c61\u306eSQL\u3092\u6307\u5b9a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Oracle\u3067\u306f\u3001\u78ba\u8a8d\u3057\u305f\u3044SQL\u306e\u524d\u306b <code>EXPLAIN PLAN FOR<\/code> \u3092\u4ed8\u3051\u3066\u5b9f\u884c\u8a08\u753b\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002 \u3053\u306e\u51e6\u7406\u3067\u3001\u5b9f\u884c\u8a08\u753b\u306e\u60c5\u5831\u304c <code>PLAN_TABLE<\/code> \u306b\u5165\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>EXPLAIN PLAN FOR\nSELECT\n    order_id,\n    customer_id,\n    order_date,\n    total_amount\nFROM\n    orders\nWHERE\n    customer_id = 1001\n    AND order_date >= DATE '2026-07-01';<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">EXPLAIN PLAN <\/span><span style=\"color: #81A1C1\">FOR<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_date,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    total_amount<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    orders<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> order_date <\/span><span style=\"color: #81A1C1\">&gt;=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">DATE<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2026-07-01<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306eSQL\u306f\u3001\u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u7279\u5b9a\u9867\u5ba2\u306e\u6ce8\u6587\u3092\u65e5\u4ed8\u6761\u4ef6\u3067\u7d5e\u308b\u4f8b\u3067\u3059\u3002 \u5b9f\u52d9\u3067\u306f\u3001\u753b\u9762\u3084\u30d0\u30c3\u30c1\u304b\u3089\u5b9f\u969b\u306b\u6295\u3052\u3089\u308c\u3066\u3044\u308bSQL\u306b\u7f6e\u304d\u63db\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>EXPLAIN PLAN FOR<\/code> \u306f\u3001SQL\u306e\u7d50\u679c\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306e\u5b9f\u884c\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 Oracle\u304c\u305d\u306eSQL\u3092\u3069\u3046\u5b9f\u884c\u3057\u3088\u3046\u3068\u3059\u308b\u304b\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u306e\u64cd\u4f5c\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DBMS_XPLAN.DISPLAY\u3067\u7d50\u679c\u3092\u8868\u793a\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>EXPLAIN PLAN FOR<\/code> \u306e\u3042\u3068\u3001<code>DBMS_XPLAN.DISPLAY()<\/code> \u3067\u76f4\u8fd1\u306e\u5b9f\u884c\u8a08\u753b\u3092\u8868\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT\n    PLAN_TABLE_OUTPUT\nFROM\n    TABLE(DBMS_XPLAN.DISPLAY());<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    PLAN_TABLE_OUTPUT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">TABLE<\/span><span style=\"color: #D8DEE9FF\">(DBMS_XPLAN.DISPLAY<\/span><span style=\"color: #ECEFF4\">()<\/span><span style=\"color: #D8DEE9FF\">);<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">SQL*Plus\u3084SQL Developer\u306a\u3069\u3067\u5b9f\u884c\u3059\u308b\u3068\u3001\u5b9f\u884c\u8a08\u753b\u304c\u30c6\u30ad\u30b9\u30c8\u3068\u3057\u3066\u51fa\u307e\u3059\u3002 \u51fa\u529b\u306f\u3001\u305f\u3068\u3048\u3070\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">Markdown<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>--------------------------------------------------------------------------------\n| Id  | Operation                   | Name          | Rows | Bytes | Cost |\n--------------------------------------------------------------------------------\n|   0 | SELECT STATEMENT            |               |  120 |  7200 |   18 |\n|   1 | TABLE ACCESS BY INDEX ROWID | ORDERS        |  120 |  7200 |   18 |\n|   2 | INDEX RANGE SCAN            | IDX_ORDERS_01 |  120 |       |    4 |\n--------------------------------------------------------------------------------\n\nPredicate Information (identified by operation id):\n---------------------------------------------------\n   2 - access(\"CUSTOMER_ID\"=1001 AND \"ORDER_DATE\">=DATE '2026-07-01')<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">--------------------------------------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Id  <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Operation                   <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Name          <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Rows <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Bytes <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Cost <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">--------------------------------------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   0 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> SELECT STATEMENT            <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">               <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  120 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  7200 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   18 <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   1 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> TABLE ACCESS BY INDEX ROWID <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> ORDERS        <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  120 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  7200 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   18 <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   2 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> INDEX RANGE SCAN            <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> IDX_ORDERS_01 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  120 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">       <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">    4 <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">--------------------------------------------------------------------------------<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Predicate Information (identified by operation id):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">---------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">   2 - access(&quot;CUSTOMER_ID&quot;=1001 AND &quot;ORDER_DATE&quot;&gt;=DATE &#39;2026-07-01&#39;)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4f8b\u3067\u306f\u3001<code>IDX_ORDERS_01<\/code> \u3092\u4f7f\u3063\u3066\u6761\u4ef6\u306b\u5408\u3046\u884c\u3092\u63a2\u3057\u3001\u305d\u306e\u3042\u3068\u30c6\u30fc\u30d6\u30eb\u304b\u3089\u884c\u3092\u53d6\u5f97\u3057\u3066\u3044\u307e\u3059\u3002 \u78ba\u8a8d\u306e\u5165\u53e3\u306f\u3001<code>Operation<\/code>\u3001<code>Name<\/code>\u3001<code>Rows<\/code>\u3001<code>Cost<\/code>\u3001<code>Predicate Information<\/code> \u3067\u3059\u3002<\/p>\n\n\n\n<div style=\"border-color:#caecec;border-width:1px;border-style:solid;border-radius:8px;background-color:#f2fbfb;margin-top:1.8em;margin-bottom:2em;padding:16px 18px\"><p style=\"line-height:2;margin:0\">\u5b9f\u884c\u8a08\u753b\u306e\u51fa\u529b\u306f\u3001\u8868\u5168\u4f53\u3092\u6697\u8a18\u3057\u306a\u304f\u3066\u3082\u8aad\u3081\u307e\u3059\u3002\u6700\u521d\u306f\u3001\u3069\u306e\u8868\u3092\u3069\u3046\u8aad\u3093\u3067\u3044\u308b\u304b\u3001\u4f55\u4ef6\u304f\u3089\u3044\u8aad\u3080\u898b\u8fbc\u307f\u304b\u3001\u6761\u4ef6\u304c\u3069\u3053\u3067\u52b9\u3044\u3066\u3044\u308b\u304b\u306b\u7d5e\u308a\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">EXPLAIN PLAN\u306f\u5b9f\u884c\u6642\u305d\u306e\u3082\u306e\u3068\u306f\u9650\u3089\u306a\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>EXPLAIN PLAN<\/code> \u306f\u6700\u521d\u306e\u78ba\u8a8d\u306b\u4f7f\u3048\u307e\u3059\u304c\u3001\u5b9f\u969b\u306bSQL\u3092\u6d41\u3057\u305f\u3068\u304d\u306e\u60c5\u5831\u3068\u5fc5\u305a\u4e00\u81f4\u3059\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 Oracle\u306e\u8cc7\u6599\u3067\u3082\u3001\u8aac\u660e\u6642\u306e\u8a08\u753b\u3068\u5b9f\u969b\u306b\u4f7f\u308f\u308c\u308b\u8a08\u753b\u304c\u7570\u306a\u308b\u5834\u5408\u304c\u3042\u308b\u3053\u3068\u304c\u793a\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u9055\u3044\u304c\u51fa\u308b\u7406\u7531\u306f\u3044\u304f\u3064\u304b\u3042\u308a\u307e\u3059\u3002 \u30b9\u30ad\u30fc\u30de\u3001\u7d71\u8a08\u60c5\u5831\u3001\u30d0\u30a4\u30f3\u30c9\u5024\u3001\u30bb\u30c3\u30b7\u30e7\u30f3\u8a2d\u5b9a\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5909\u66f4\u3001\u5b9f\u884c\u74b0\u5883\u304c\u5909\u308f\u308b\u3068\u3001\u9078\u3070\u308c\u308b\u8a08\u753b\u3082\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u305f\u3081\u3001<code>EXPLAIN PLAN<\/code> \u3060\u3051\u3067\u6700\u7d42\u5224\u65ad\u306b\u3057\u307e\u305b\u3093\u3002 \u672c\u5f53\u306b\u9045\u3044SQL\u3067\u306f\u3001\u5b9f\u969b\u306b\u5b9f\u884c\u3057\u305f\u30ab\u30fc\u30bd\u30eb\u306e\u8a08\u753b\u3084\u5b9f\u884c\u7d71\u8a08\u307e\u3067\u898b\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"border-color:#f1d48b;border-width:1px;border-style:solid;border-radius:8px;background-color:#fff8e6;margin-top:1.8em;margin-bottom:2em;padding:16px 18px\"><p style=\"line-height:2;margin:0\"><code>EXPLAIN PLAN<\/code> \u306f\u6700\u521d\u306e\u5f53\u305f\u308a\u3092\u4ed8\u3051\u308b\u306b\u306f\u4fbf\u5229\u3067\u3059\u3002\u305f\u3060\u3057\u3001\u5b9f\u884c\u6642\u306e\u5b9f\u7e3e\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u4fee\u6b63\u524d\u5f8c\u306e\u5224\u65ad\u3067\u306f\u3001\u5b9f\u884c\u6642\u9593\u3001\u5bfe\u8c61\u4ef6\u6570\u3001\u5b9f\u969b\u306e\u5b9f\u884c\u6761\u4ef6\u3082\u4e00\u7dd2\u306b\u6b8b\u3057\u307e\u3059\u3002<\/p><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fdd\u5b88\u4f5c\u696d\u306e\u6700\u521d\u306e\u78ba\u8a8d\u3067\u306f\u3001<code>EXPLAIN PLAN FOR<\/code> \u3068 <code>DBMS_XPLAN.DISPLAY()<\/code> \u304b\u3089\u59cb\u3081\u307e\u3059\u3002 AWR\u3001SQL Trace\u3001<code>DISPLAY_CURSOR<\/code> \u306e\u8a73\u7d30\u307e\u3067\u306f\u5e83\u3052\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u884c\u8a08\u753b\u3067\u6700\u521d\u306b\u898b\u308b\u884c<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">TABLE ACCESS FULL\u306a\u3089\u5168\u4ef6\u8d70\u67fb\u306b\u306a\u3063\u3066\u3044\u308b\u304b\u3092\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9045\u3044SQL\u3067\u6700\u521d\u306b\u76ee\u306b\u4ed8\u304f\u306e\u306f\u3001<code>TABLE ACCESS FULL<\/code> \u3067\u3059\u3002 \u3053\u308c\u306f\u30c6\u30fc\u30d6\u30eb\u5168\u4f53\u3092\u8aad\u3080\u64cd\u4f5c\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3068\u3048\u3070\u3001\u6b21\u306e\u3088\u3046\u306a\u51fa\u529b\u306a\u3089\u3001<code>ORDERS<\/code> \u3092\u5168\u8868\u8d70\u67fb\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">Markdown<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>-------------------------------------------------------------------\n| Id  | Operation          | Name   | Rows   | Bytes    | Cost |\n-------------------------------------------------------------------\n|   0 | SELECT STATEMENT   |        | 150000 | 9000000  | 9800 |\n|   1 | TABLE ACCESS FULL  | ORDERS | 150000 | 9000000  | 9800 |\n-------------------------------------------------------------------\n\nPredicate Information (identified by operation id):\n---------------------------------------------------\n   1 - filter(\"CUSTOMER_ID\"=1001 AND \"ORDER_DATE\">=DATE '2026-07-01')<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">-------------------------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Id  <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Operation          <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Name   <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Rows   <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Bytes    <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Cost <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">-------------------------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   0 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> SELECT STATEMENT   <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">        <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> 150000 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> 9000000  <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> 9800 <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   1 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> TABLE ACCESS FULL  <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> ORDERS <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> 150000 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> 9000000  <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> 9800 <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">-------------------------------------------------------------------<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Predicate Information (identified by operation id):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">---------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">   1 - filter(&quot;CUSTOMER_ID&quot;=1001 AND &quot;ORDER_DATE&quot;&gt;=DATE &#39;2026-07-01&#39;)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4f8b\u3067\u306f\u3001<code>ORDERS<\/code> \u3092\u5e83\u304f\u8aad\u3093\u3060\u3042\u3068\u3001\u6761\u4ef6\u3067\u7d5e\u3063\u3066\u3044\u308b\u5f62\u3067\u3059\u3002 \u5bfe\u8c61\u30c6\u30fc\u30d6\u30eb\u304c\u5c0f\u3055\u3044\u306a\u3089\u554f\u984c\u306b\u306a\u3089\u306a\u3044\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u6570\u767e\u4e07\u4ef6\u3042\u308b\u30c6\u30fc\u30d6\u30eb\u3067\u6bce\u56de\u3053\u308c\u304c\u51fa\u308b\u3068\u9045\u304f\u306a\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_orange\"><strong>TABLE ACCESS FULL\u306f\u5e38\u306b\u60aa\u3067\u306f\u3042\u308a\u307e\u305b\u3093<\/strong><\/span> \u305f\u3060\u3057\u3001\u5c11\u306a\u3044\u4ef6\u6570\u3092\u8fd4\u3059\u691c\u7d22\u306a\u306e\u306b\u5927\u304d\u306a\u30c6\u30fc\u30d6\u30eb\u3092\u5168\u4ef6\u8aad\u3093\u3067\u3044\u308b\u306a\u3089\u3001\u6761\u4ef6\u3084\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u7591\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">INDEX RANGE SCAN\u306a\u3089\u691c\u7d22\u6761\u4ef6\u3068\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u540d\u3092\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>INDEX RANGE SCAN<\/code> \u304c\u51fa\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u7bc4\u56f2\u307e\u305f\u306f\u8907\u6570\u5019\u88dc\u3092\u63a2\u3057\u3066\u3044\u307e\u3059\u3002 \u3053\u3053\u3067\u898b\u308b\u306e\u306f\u3001\u3069\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">Markdown<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>--------------------------------------------------------------------------------\n| Id  | Operation                   | Name          | Rows | Bytes | Cost |\n--------------------------------------------------------------------------------\n|   0 | SELECT STATEMENT            |               |  120 |  7200 |   18 |\n|   1 | TABLE ACCESS BY INDEX ROWID | ORDERS        |  120 |  7200 |   18 |\n|   2 | INDEX RANGE SCAN            | IDX_ORDERS_01 |  120 |       |    4 |\n--------------------------------------------------------------------------------<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">--------------------------------------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Id  <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Operation                   <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Name          <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Rows <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Bytes <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> Cost <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">--------------------------------------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   0 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> SELECT STATEMENT            <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">               <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  120 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  7200 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   18 <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   1 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> TABLE ACCESS BY INDEX ROWID <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> ORDERS        <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  120 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  7200 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   18 <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">   2 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> INDEX RANGE SCAN            <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\"> IDX_ORDERS_01 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">  120 <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">       <\/span><span style=\"color: #ECEFF4\">|<\/span><span style=\"color: #D8DEE9FF\">    4 <\/span><span style=\"color: #ECEFF4\">|<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">--------------------------------------------------------------------------------<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u4f8b\u3067\u306f\u3001<code>IDX_ORDERS_01<\/code> \u3092\u4f7f\u3063\u3066\u3044\u307e\u3059\u3002 \u6b21\u306b\u78ba\u8a8d\u3059\u308b\u306e\u306f\u3001\u305d\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u3069\u306e\u5217\u3067\u4f5c\u3089\u308c\u3066\u3044\u308b\u304b\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT\n    index_name,\n    column_name,\n    column_position\nFROM\n    user_ind_columns\nWHERE\n    table_name = 'ORDERS'\nORDER BY\n    index_name,\n    column_position;<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    index_name,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    column_name,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    column_position<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    user_ind_columns<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    table_name <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">ORDERS<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">ORDER BY<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    index_name,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    column_position;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><code>IDX_ORDERS_01<\/code> \u304c <code>CUSTOMER_ID<\/code> \u3068 <code>ORDER_DATE<\/code> \u306e\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306a\u3089\u3001\u4eca\u56de\u306e\u6761\u4ef6\u306b\u5408\u3063\u3066\u3044\u307e\u3059\u3002 \u5225\u306e\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u3044\u308b\u306a\u3089\u3001\u306a\u305c\u305d\u306e\u8a08\u753b\u306b\u306a\u3063\u305f\u306e\u304b\u3092\u898b\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\">\u5b9f\u884c\u8a08\u753b\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u540d\u304c\u51fa\u305f\u3089\u3001\u305d\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u5217\u69cb\u6210\u307e\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/span> \u540d\u524d\u3060\u3051\u898b\u3066\u300c\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u4f7f\u3063\u3066\u3044\u308b\u304b\u3089\u5927\u4e08\u592b\u300d\u3068\u5224\u65ad\u3059\u308b\u3068\u3001\u52b9\u304d\u65b9\u3092\u898b\u843d\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Rows\u3068Cost\u306f\u5358\u72ec\u3067\u5584\u60aa\u3092\u6c7a\u3081\u306a\u3044<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>Rows<\/code> \u306f\u3001\u5404\u30b9\u30c6\u30c3\u30d7\u3067\u51e6\u7406\u3059\u308b\u884c\u6570\u306e\u898b\u7a4d\u308a\u3067\u3059\u3002 <code>Cost<\/code> \u306f\u3001Oracle\u306e\u30aa\u30d7\u30c6\u30a3\u30de\u30a4\u30b6\u304c\u6bd4\u8f03\u306b\u4f7f\u3046\u30b3\u30b9\u30c8\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e2\u3064\u306f\u4f7f\u3044\u307e\u3059\u304c\u3001\u6570\u5b57\u3060\u3051\u3067\u5584\u60aa\u3092\u6c7a\u3081\u307e\u305b\u3093\u3002 <code>Cost<\/code> \u304c\u5927\u304d\u3044\u304b\u3089\u5fc5\u305a\u9045\u3044\u3001<code>Rows<\/code> \u304c\u5c0f\u3055\u3044\u304b\u3089\u5fc5\u305a\u901f\u3044\u3001\u3068\u306f\u8a00\u3044\u5207\u308c\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u78ba\u8a8d\u3067\u306f\u3001\u60f3\u5b9a\u4ef6\u6570\u3068\u305a\u308c\u3066\u3044\u306a\u3044\u304b\u3092\u898b\u307e\u3059\u3002 \u691c\u7d22\u6761\u4ef6\u3067\u306f120\u4ef6\u7a0b\u5ea6\u306e\u3064\u3082\u308a\u306a\u306e\u306b\u3001\u5b9f\u884c\u8a08\u753b\u3067\u306f150000\u4ef6\u306b\u306a\u3063\u3066\u3044\u308b\u3002 \u3053\u3046\u3044\u3046\u30ba\u30ec\u304c\u3042\u308c\u3070\u3001\u7d71\u8a08\u60c5\u5831\u3001\u6761\u4ef6\u306e\u66f8\u304d\u65b9\u3001\u30d0\u30a4\u30f3\u30c9\u5024\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u9078\u3070\u308c\u65b9\u3092\u7591\u3044\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -circle\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/blog.nexive.tech\/wp-content\/uploads\/2026\/05\/small-smile-150x150.png\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">tomo<\/span><\/div><div class=\"c-balloon__body -speaking -border-on\"><div class=\"c-balloon__text\">\n<p>\u5b9f\u884c\u8a08\u753b\u306e\u6570\u5b57\u306f\u3001\u70b9\u6570\u8868\u3068\u3044\u3046\u3088\u308a\u8aad\u307f\u53d6\u308a\u91cf\u306e\u30e1\u30e2\u3067\u3059\u3002\u3069\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u5927\u304d\u304f\u8aad\u3093\u3067\u3044\u308b\u304b\u3092\u898b\u308b\u3068\u3001\u6b21\u306b\u7591\u3046\u5834\u6240\u3092\u7d5e\u308c\u307e\u3059\u3002<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h2 class=\"wp-block-heading\">Predicate Information\u3068\u6761\u4ef6\u306e\u52b9\u304d\u65b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">access\u3068filter\u306e\u9055\u3044\u3092\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>Predicate Information<\/code> \u306b\u306f\u3001WHERE\u6761\u4ef6\u304c\u3069\u306e\u64cd\u4f5c\u3067\u4f7f\u308f\u308c\u305f\u304b\u304c\u51fa\u307e\u3059\u3002 \u9045\u3044SQL\u306e\u8abf\u67fb\u3067\u306f\u3001\u3053\u3053\u3067\u300c\u6761\u4ef6\u3092\u66f8\u3044\u3066\u3044\u308b\u3060\u3051\u300d\u306a\u306e\u304b\u3001\u300c\u6761\u4ef6\u3067\u63a2\u3057\u306b\u884c\u3051\u3066\u3044\u308b\u300d\u306e\u304b\u3092\u5206\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6b21\u306e\u4f8b\u3067\u306f\u3001\u6761\u4ef6\u304c\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u30a2\u30af\u30bb\u30b9\u306b\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">Markdown<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>Predicate Information (identified by operation id):\n---------------------------------------------------\n   2 - access(\"CUSTOMER_ID\"=1001 AND \"ORDER_DATE\">=DATE '2026-07-01')<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">Predicate Information (identified by operation id):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">---------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">   2 - access(&quot;CUSTOMER_ID&quot;=1001 AND &quot;ORDER_DATE&quot;&gt;=DATE &#39;2026-07-01&#39;)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e00\u65b9\u3001\u6b21\u306e\u4f8b\u3067\u306f\u3001\u30c6\u30fc\u30d6\u30eb\u3092\u8aad\u3093\u3060\u3042\u3068\u306b\u30d5\u30a3\u30eb\u30bf\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">Markdown<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>Predicate Information (identified by operation id):\n---------------------------------------------------\n   1 - filter(\"CUSTOMER_ID\"=1001 AND \"ORDER_DATE\">=DATE '2026-07-01')<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">Predicate Information (identified by operation id):<\/span><\/span>\n<span class=\"line\"><span style=\"color: #88C0D0\">---------------------------------------------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">   1 - filter(&quot;CUSTOMER_ID&quot;=1001 AND &quot;ORDER_DATE&quot;&gt;=DATE &#39;2026-07-01&#39;)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><code>access<\/code> \u306b\u51fa\u3066\u3044\u308b\u6761\u4ef6\u306f\u3001\u884c\u3092\u63a2\u3057\u306b\u884c\u304f\u6bb5\u968e\u3067\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002 <code>filter<\/code> \u306b\u51fa\u3066\u3044\u308b\u6761\u4ef6\u306f\u3001\u53d6\u3063\u3066\u304d\u305f\u5f8c\u306e\u7d5e\u308a\u8fbc\u307f\u3067\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>filter<\/code> \u304c\u51fa\u305f\u3089\u5168\u90e8\u30c0\u30e1\u3001\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u305f\u3060\u3001\u9867\u5ba2ID\u3084\u6ce8\u6587\u65e5\u306a\u3069\u7d5e\u308a\u8fbc\u307f\u306e\u4e2d\u5fc3\u306b\u306a\u308b\u5217\u304c <code>filter<\/code> \u3060\u3051\u306b\u51fa\u3066\u3044\u3066\u3001<code>Rows<\/code> \u3082\u5927\u304d\u3044\u3002 \u3053\u306e\u7d44\u307f\u5408\u308f\u305b\u306a\u3089\u3001\u6761\u4ef6\u306e\u66f8\u304d\u65b9\u304b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u52b9\u304d\u65b9\u3092\u7591\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u95a2\u6570\u3084\u578b\u5909\u63db\u3067\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u52b9\u304d\u306b\u304f\u304f\u306a\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">WHERE\u53e5\u3067\u5217\u306b\u95a2\u6570\u3092\u304b\u3051\u308b\u3068\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u52b9\u304d\u306b\u304f\u304f\u306a\u308a\u307e\u3059\u3002 \u3088\u304f\u3042\u308b\u306e\u306f\u3001\u65e5\u4ed8\u5217\u3092\u6587\u5b57\u5217\u306b\u5909\u63db\u3057\u3066\u6bd4\u8f03\u3059\u308b\u66f8\u304d\u65b9\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT\n    order_id,\n    customer_id,\n    order_date\nFROM\n    orders\nWHERE\n    customer_id = 1001\n    AND TO_CHAR(order_date, 'YYYY-MM-DD') = '2026-07-01';<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_date<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    orders<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> TO_CHAR(order_date, <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">YYYY-MM-DD<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">) <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2026-07-01<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u66f8\u304d\u65b9\u3067\u306f\u3001<code>order_date<\/code> \u306b\u95a2\u6570\u3092\u304b\u3051\u3066\u304b\u3089\u6bd4\u8f03\u3057\u3066\u3044\u307e\u3059\u3002 \u65e5\u4ed8\u5217\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u671f\u5f85\u3057\u3066\u3044\u308b\u306a\u3089\u3001\u307e\u305a\u7591\u3046\u5834\u6240\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u65e5\u4ed8\u306e\u5f53\u65e5\u5206\u3092\u898b\u305f\u3044\u306a\u3089\u3001\u7bc4\u56f2\u6761\u4ef6\u3067\u66f8\u304f\u65b9\u304c\u78ba\u8a8d\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT\n    order_id,\n    customer_id,\n    order_date\nFROM\n    orders\nWHERE\n    customer_id = 1001\n    AND order_date >= DATE '2026-07-01'\n    AND order_date &lt;  DATE '2026-07-02';<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_date<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    orders<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> order_date <\/span><span style=\"color: #81A1C1\">&gt;=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">DATE<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2026-07-01<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> order_date <\/span><span style=\"color: #81A1C1\">&lt;<\/span><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">DATE<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2026-07-02<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_orange\"><strong>\u5217\u306b\u95a2\u6570\u3092\u304b\u3051\u305f\u6761\u4ef6\u306f\u3001\u5b9f\u884c\u8a08\u753b\u306ePredicate Information\u3067\u5fc5\u305a\u78ba\u8a8d\u3057\u307e\u3059<\/strong><\/span> \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u3042\u308b\u306e\u306b\u4f7f\u308f\u308c\u306a\u3044\u76f8\u8ac7\u3067\u306f\u3001\u3053\u3053\u3067\u6b62\u307e\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u5217\u306e\u9806\u756a\u3082\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3067\u306f\u3001\u5217\u306e\u9806\u756a\u3082\u78ba\u8a8d\u3057\u307e\u3059\u3002 <code>CUSTOMER_ID, ORDER_DATE<\/code> \u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3068\u3001<code>ORDER_DATE, CUSTOMER_ID<\/code> \u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u540c\u3058\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6ce8\u6587\u691c\u7d22\u3067\u3001\u3044\u3064\u3082\u9867\u5ba2ID\u3092\u6307\u5b9a\u3057\u3066\u304b\u3089\u6ce8\u6587\u65e5\u3067\u7d5e\u308b\u306a\u3089\u3001<code>CUSTOMER_ID<\/code> \u304c\u5148\u982d\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5408\u3044\u3084\u3059\u3044\u3067\u3059\u3002 \u65e5\u4ed8\u7bc4\u56f2\u3060\u3051\u3067\u5e83\u304f\u691c\u7d22\u3059\u308b\u753b\u9762\u306a\u3089\u3001\u5225\u306e\u8003\u3048\u65b9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5217\u306f\u3001<code>USER_IND_COLUMNS<\/code> \u3067\u9806\u756a\u307e\u3067\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT\n    index_name,\n    column_name,\n    column_position\nFROM\n    user_ind_columns\nWHERE\n    table_name = 'ORDERS'\n    AND index_name = 'IDX_ORDERS_01'\nORDER BY\n    column_position;<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    index_name,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    column_name,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    column_position<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    user_ind_columns<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    table_name <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">ORDERS<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> index_name <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">IDX_ORDERS_01<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">ORDER BY<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    column_position;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u7d50\u679c\u306f\u6b21\u306e\u3088\u3046\u306b\u898b\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">Markdown<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>INDEX_NAME      COLUMN_NAME   COLUMN_POSITION\n--------------- ------------- ---------------\nIDX_ORDERS_01   CUSTOMER_ID                 1\nIDX_ORDERS_01   ORDER_DATE                  2<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">INDEX_NAME      COLUMN_NAME   COLUMN_POSITION<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">--------------- ------------- ---------------<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">IDX_ORDERS_01   CUSTOMER_ID                 1<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">IDX_ORDERS_01   ORDER_DATE                  2<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\">\u8907\u5408\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u3001\u5217\u304c\u542b\u307e\u308c\u3066\u3044\u308b\u304b\u3060\u3051\u3067\u306a\u304f\u9806\u756a\u3092\u898b\u308b<\/span>\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 WHERE\u6761\u4ef6\u3068\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u5b9a\u7fa9\u3092\u6a2a\u306b\u4e26\u3079\u308b\u3068\u3001\u5224\u65ad\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">SQL\u3092\u66f8\u304d\u63db\u3048\u308b\u524d\u306e\u78ba\u8a8d\u9806<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u6761\u4ef6\u3092\u72ed\u3081\u3089\u308c\u308b\u304b\u696d\u52d9\u6761\u4ef6\u304b\u3089\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">SQL\u306e\u4fee\u6b63\u3067\u306f\u3001\u6280\u8853\u7684\u306b\u901f\u304f\u3059\u308b\u524d\u306b\u3001\u6761\u4ef6\u3092\u72ed\u3081\u3089\u308c\u308b\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002 \u65e5\u4ed8\u7bc4\u56f2\u3001\u30b9\u30c6\u30fc\u30bf\u30b9\u3001\u90e8\u9580\u3001\u9867\u5ba2\u533a\u5206\u306f\u3001\u696d\u52d9\u5074\u306e\u6761\u4ef6\u3067\u7d5e\u308c\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3068\u3048\u3070\u3001\u753b\u9762\u3067\u306f\u76f4\u8fd11\u5e74\u5206\u3060\u3051\u898b\u308c\u3070\u3088\u3044\u306e\u306b\u3001SQL\u3067\u306f\u5168\u671f\u9593\u3092\u691c\u7d22\u3057\u3066\u3044\u308b\u3002 \u7d42\u4e86\u6e08\u307f\u30c7\u30fc\u30bf\u3092\u542b\u3081\u308b\u5fc5\u8981\u304c\u306a\u3044\u306e\u306b\u3001\u5168\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u5bfe\u8c61\u306b\u3057\u3066\u3044\u308b\u3002 \u3053\u3046\u3044\u3046\u5834\u5408\u3001SQL\u306e\u5f62\u3088\u308a\u6761\u4ef6\u306e\u6c7a\u3081\u65b9\u3092\u76f4\u3057\u305f\u65b9\u304c\u52b9\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>-- \u7bc4\u56f2\u304c\u5e83\u3059\u304e\u308b\u4f8b\nWHERE customer_id = 1001\n\n-- \u753b\u9762\u8981\u4ef6\u306b\u5408\u308f\u305b\u3066\u671f\u9593\u3082\u6307\u5b9a\u3059\u308b\u4f8b\nWHERE customer_id = 1001\n  AND order_date >= ADD_MONTHS(TRUNC(SYSDATE), -12)<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #616E88\">-- \u7bc4\u56f2\u304c\u5e83\u3059\u304e\u308b\u4f8b<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><span style=\"color: #D8DEE9FF\"> customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #616E88\">-- \u753b\u9762\u8981\u4ef6\u306b\u5408\u308f\u305b\u3066\u671f\u9593\u3082\u6307\u5b9a\u3059\u308b\u4f8b<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><span style=\"color: #D8DEE9FF\"> customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> order_date <\/span><span style=\"color: #81A1C1\">&gt;=<\/span><span style=\"color: #D8DEE9FF\"> ADD_MONTHS(TRUNC(<\/span><span style=\"color: #81A1C1\">SYSDATE<\/span><span style=\"color: #D8DEE9FF\">), <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #B48EAD\">12<\/span><span style=\"color: #D8DEE9FF\">)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u306f\u958b\u767a\u8005\u3060\u3051\u3067\u6c7a\u3081\u306a\u3044\u65b9\u304c\u3088\u3044\u3067\u3059\u3002 \u753b\u9762\u3084\u5e33\u7968\u3067\u672c\u5f53\u306b\u5fc5\u8981\u306a\u7bc4\u56f2\u3092\u3001\u5229\u7528\u8005\u3084\u4ed5\u69d8\u3068\u7167\u3089\u3057\u3066\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -circle\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/blog.nexive.tech\/wp-content\/uploads\/2026\/05\/big-smile-150x150.png\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">tomo<\/span><\/div><div class=\"c-balloon__body -speaking -border-on\"><div class=\"c-balloon__text\">\n<p>\u9045\u3044SQL\u304c\u3001\u5b9f\u306f\u300c\u5fc5\u8981\u4ee5\u4e0a\u306b\u5e83\u304f\u63a2\u3057\u3066\u3044\u305f\u3060\u3051\u300d\u3060\u3063\u305f\u3053\u3068\u306f\u73cd\u3057\u304f\u3042\u308a\u307e\u305b\u3093\u3002WHERE\u6761\u4ef6\u30921\u3064\u8db3\u3059\u3060\u3051\u3067\u3001SQL\u306e\u66f8\u304d\u63db\u3048\u3088\u308a\u52b9\u304f\u5834\u9762\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\">SELECT\u53e5\u306f\u5fc5\u8981\u306a\u5217\u3060\u3051\u306b\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><code>SELECT *<\/code> \u306f\u624b\u65e9\u3044\u3067\u3059\u304c\u3001\u4fdd\u5b88\u3067\u898b\u308bSQL\u3067\u306f\u6ce8\u610f\u3057\u307e\u3059\u3002 \u753b\u9762\u3084\u5e33\u7968\u3067\u4f7f\u308f\u306a\u3044\u5217\u307e\u3067\u53d6\u3063\u3066\u3044\u308b\u3068\u3001\u8aad\u307f\u53d6\u308a\u91cf\u3084\u901a\u4fe1\u91cf\u304c\u5897\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(1 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT *\nFROM orders\nWHERE customer_id = 1001\n  AND order_date >= DATE '2026-07-01';<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">*<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><span style=\"color: #D8DEE9FF\"> orders<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><span style=\"color: #D8DEE9FF\"> customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">  <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> order_date <\/span><span style=\"color: #81A1C1\">&gt;=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">DATE<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2026-07-01<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u5fc5\u8981\u306a\u5217\u304c\u6c7a\u307e\u3063\u3066\u3044\u308b\u306a\u3089\u3001\u5217\u3092\u660e\u793a\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">SQL<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>SELECT\n    order_id,\n    customer_id,\n    order_date,\n    total_amount\nFROM\n    orders\nWHERE\n    customer_id = 1001\n    AND order_date >= DATE '2026-07-01';<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #81A1C1\">SELECT<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    order_date,<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    total_amount<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">FROM<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    orders<\/span><\/span>\n<span class=\"line\"><span style=\"color: #81A1C1\">WHERE<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    customer_id <\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1001<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">    <\/span><span style=\"color: #81A1C1\">AND<\/span><span style=\"color: #D8DEE9FF\"> order_date <\/span><span style=\"color: #81A1C1\">&gt;=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">DATE<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #A3BE8C\">2026-07-01<\/span><span style=\"color: #ECEFF4\">&#39;<\/span><span style=\"color: #D8DEE9FF\">;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u305f\u3060\u3057\u3001<code>SELECT *<\/code> \u3092\u76f4\u305b\u3070\u5fc5\u305a\u901f\u304f\u306a\u308b\u3001\u3068\u3044\u3046\u8a71\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u4e3b\u306a\u9045\u3055\u304c\u5168\u4ef6\u8d70\u67fb\u3084\u7d50\u5408\u6761\u4ef6\u306b\u3042\u308b\u306a\u3089\u3001\u5217\u3092\u6e1b\u3089\u3057\u3066\u3082\u52b9\u679c\u306f\u9650\u5b9a\u7684\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u78ba\u8a8d\u3067\u306f\u3001\u5b9f\u884c\u8a08\u753b\u3068\u753b\u9762\u4ed5\u69d8\u3092\u5408\u308f\u305b\u3066\u898b\u307e\u3059\u3002 \u4f7f\u308f\u306a\u3044\u5217\u3092\u5927\u91cf\u306b\u53d6\u3063\u3066\u3044\u308b\u306a\u3089\u76f4\u3059\u3002 \u5148\u306b\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u3084\u4ef6\u6570\u306e\u554f\u984c\u304c\u5927\u304d\u3044\u306a\u3089\u3001\u305d\u3061\u3089\u3092\u512a\u5148\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u8ffd\u52a0\u306f\u66f4\u65b0\u51e6\u7406\u3078\u306e\u5f71\u97ff\u3082\u898b\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8db3\u3059\u3068\u691c\u7d22\u304c\u901f\u304f\u306a\u308b\u5834\u9762\u306f\u3042\u308a\u307e\u3059\u3002 \u305f\u3060\u3057\u3001\u8ffd\u52a0\u3059\u308c\u3070\u52dd\u3061\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306f\u3001INSERT\u3001UPDATE\u3001DELETE\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002 \u6ce8\u6587\u30c6\u30fc\u30d6\u30eb\u306e\u691c\u7d22\u3092\u901f\u304f\u3059\u308b\u305f\u3081\u306b\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u5897\u3084\u3057\u305f\u7d50\u679c\u3001\u591c\u9593\u30d0\u30c3\u30c1\u306e\u767b\u9332\u51e6\u7406\u304c\u9045\u304f\u306a\u308b\u3002 \u3053\u306e\u624b\u306e\u526f\u4f5c\u7528\u306f\u3001\u3042\u3068\u304b\u3089\u52b9\u3044\u3066\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u78ba\u8a8d\u3059\u308b\u3068\u304d\u306f\u3001\u6b21\u306e\u5185\u5bb9\u3092\u6b8b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-table\" style=\"margin-bottom:2em\"><table><thead><tr><th>\u78ba\u8a8d\u9805\u76ee<\/th><th>\u898b\u308b\u7406\u7531<\/th><th>\u6b8b\u3059\u5185\u5bb9<\/th><\/tr><\/thead><tbody><tr><td>\u5bfe\u8c61SQL<\/td><td>\u3069\u306eSQL\u3092\u901f\u304f\u3057\u305f\u3044\u304b\u3092\u660e\u78ba\u306b\u3059\u308b\u305f\u3081<\/td><td>SQL\u672c\u6587\u3001\u30d0\u30a4\u30f3\u30c9\u5024\u3001\u5b9f\u884c\u6761\u4ef6<\/td><\/tr><tr><td>\u5bfe\u8c61\u4ef6\u6570<\/td><td>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3067\u7d5e\u308c\u308b\u691c\u7d22\u304b\u3092\u898b\u308b\u305f\u3081<\/td><td>\u5168\u4f53\u4ef6\u6570\u3001\u6761\u4ef6\u4e00\u81f4\u4ef6\u6570<\/td><\/tr><tr><td>\u65e2\u5b58\u30a4\u30f3\u30c7\u30c3\u30af\u30b9<\/td><td>\u8ffd\u52a0\u524d\u306b\u4f7f\u3048\u308b\u3082\u306e\u304c\u306a\u3044\u304b\u3092\u898b\u308b\u305f\u3081<\/td><td>\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u540d\u3001\u5217\u3001\u9806\u756a<\/td><\/tr><tr><td>\u66f4\u65b0\u51e6\u7406<\/td><td>\u8ffd\u52a0\u3057\u305f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u66f8\u304d\u8fbc\u307f\u51e6\u7406\u3078\u5f71\u97ff\u3059\u308b\u305f\u3081<\/td><td>\u767b\u9332\u3001\u66f4\u65b0\u3001\u524a\u9664\u3001\u591c\u9593\u30d0\u30c3\u30c1\u306e\u6709\u7121<\/td><\/tr><tr><td>\u4fee\u6b63\u524d\u5f8c\u306e\u8a08\u753b<\/td><td>\u52b9\u679c\u3092\u8aac\u660e\u3059\u308b\u305f\u3081<\/td><td>Operation\u3001Rows\u3001Cost\u3001Predicate Information<\/td><\/tr><\/tbody><\/table><\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\">\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u8ffd\u52a0\u306f\u3001\u691c\u7d22SQL\u3060\u3051\u3067\u306f\u306a\u304f\u66f4\u65b0\u51e6\u7406\u307e\u3067\u898b\u3066\u5224\u65ad\u3057\u307e\u3059\u3002<\/span> \u4fdd\u5b88\u4f5c\u696d\u3067\u306f\u3001\u901f\u304f\u3057\u305fSQL\u306e\u88cf\u3067\u5225\u51e6\u7406\u3092\u9045\u304f\u3057\u306a\u3044\u3068\u3053\u308d\u307e\u3067\u898b\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u8abf\u67fb\u7d50\u679c\u3092\u6b8b\u3059\u5f62<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">SQL\u3001\u30d0\u30a4\u30f3\u30c9\u5024\u3001\u5b9f\u884c\u8a08\u753b\u3092\u30bb\u30c3\u30c8\u3067\u6b8b\u3059<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9045\u3044SQL\u306e\u8abf\u67fb\u3067\u306f\u3001\u5f8c\u304b\u3089\u540c\u3058\u72b6\u614b\u3092\u518d\u73fe\u3067\u304d\u308b\u5f62\u3067\u6b8b\u3057\u307e\u3059\u3002 SQL\u672c\u6587\u3060\u3051\u3067\u306f\u8db3\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u4f4e\u9650\u3001SQL\u3001\u30d0\u30a4\u30f3\u30c9\u5024\u3001\u5b9f\u884c\u65e5\u6642\u3001\u5bfe\u8c61\u74b0\u5883\u3001\u5b9f\u884c\u8a08\u753b\u3092\u30bb\u30c3\u30c8\u306b\u3057\u307e\u3059\u3002 \u753b\u9762\u304b\u3089\u5b9f\u884c\u3057\u305f\u306a\u3089\u3001\u753b\u9762\u306e\u691c\u7d22\u6761\u4ef6\u3082\u6b8b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-table\" style=\"margin-bottom:2em\"><table><thead><tr><th>\u6b8b\u3059\u3082\u306e<\/th><th>\u4f8b<\/th><th>\u7406\u7531<\/th><\/tr><\/thead><tbody><tr><td>SQL\u672c\u6587<\/td><td>SELECT &#8230; FROM orders &#8230;<\/td><td>\u5bfe\u8c61SQL\u3092\u7279\u5b9a\u3059\u308b\u305f\u3081<\/td><\/tr><tr><td>\u30d0\u30a4\u30f3\u30c9\u5024<\/td><td>customer_id=1001\u3001order_date=2026-07-01<\/td><td>\u4ef6\u6570\u3068\u5b9f\u884c\u8a08\u753b\u304c\u5024\u3067\u5909\u308f\u308b\u305f\u3081<\/td><\/tr><tr><td>\u5bfe\u8c61\u74b0\u5883<\/td><td>\u691c\u8a3cDB\u3001\u672c\u756a\u76f8\u5f53\u30c7\u30fc\u30bf<\/td><td>\u30c7\u30fc\u30bf\u91cf\u3084\u7d71\u8a08\u60c5\u5831\u304c\u9055\u3046\u305f\u3081<\/td><\/tr><tr><td>\u5b9f\u884c\u8a08\u753b<\/td><td>DBMS_XPLAN.DISPLAY\u306e\u51fa\u529b<\/td><td>\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u3068\u6761\u4ef6\u306e\u52b9\u304d\u65b9\u3092\u898b\u308b\u305f\u3081<\/td><\/tr><tr><td>\u4ef6\u6570<\/td><td>\u5168\u4f53200\u4e07\u4ef6\u3001\u6761\u4ef6\u4e00\u81f4120\u4ef6<\/td><td>Rows\u306e\u59a5\u5f53\u6027\u3092\u898b\u308b\u305f\u3081<\/td><\/tr><\/tbody><\/table><\/div>\n\n\n<div class=\"swell-block-balloon\"><div class=\"c-balloon -bln-left\" data-col=\"gray\"><div class=\"c-balloon__icon -circle\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/blog.nexive.tech\/wp-content\/uploads\/2026\/05\/concern-150x150.png\" alt=\"\" class=\"c-balloon__iconImg\" width=\"80px\" height=\"80px\"><span class=\"c-balloon__iconName\">tomo<\/span><\/div><div class=\"c-balloon__body -speaking -border-on\"><div class=\"c-balloon__text\">\n<p>\u300c\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8ffd\u52a0\u3057\u305f\u3089\u901f\u304f\u306a\u3063\u305f\u300d\u3060\u3051\u3060\u3068\u3001\u6b21\u306b\u540c\u3058\u554f\u984c\u304c\u8d77\u304d\u305f\u3068\u304d\u306b\u4f7f\u3048\u307e\u305b\u3093\u3002\u3069\u306e\u6761\u4ef6\u3067\u3001\u4f55\u4ef6\u3092\u5bfe\u8c61\u306b\u3057\u3001\u5b9f\u884c\u8a08\u753b\u304c\u3069\u3046\u5909\u308f\u3063\u305f\u304b\u307e\u3067\u6b8b\u3057\u307e\u3059\u3002<\/p>\n<span class=\"c-balloon__shapes\"><span class=\"c-balloon__before\"><\/span><span class=\"c-balloon__after\"><\/span><\/span><\/div><\/div><\/div><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u4fee\u6b63\u524d\u5f8c\u3067\u898b\u308b\u9805\u76ee\u3092\u305d\u308d\u3048\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fee\u6b63\u524d\u306f\u753b\u9762\u3067\u6e2c\u308a\u3001\u4fee\u6b63\u5f8c\u306fSQL\u5358\u4f53\u3067\u6e2c\u308b\u3002 \u4fee\u6b63\u524d\u306f\u672c\u756a\u76f8\u5f53\u30c7\u30fc\u30bf\u3067\u898b\u3066\u3001\u4fee\u6b63\u5f8c\u306f\u5c11\u306a\u3044\u691c\u8a3c\u30c7\u30fc\u30bf\u3067\u898b\u308b\u3002 \u3053\u306e\u6bd4\u8f03\u3067\u306f\u3001\u76f4\u3063\u305f\u304b\u3069\u3046\u304b\u3092\u8aac\u660e\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4fee\u6b63\u524d\u5f8c\u3067\u306f\u3001\u6761\u4ef6\u3092\u305d\u308d\u3048\u307e\u3059\u3002 \u540c\u3058SQL\u3001\u540c\u3058\u30d0\u30a4\u30f3\u30c9\u5024\u3001\u540c\u3058\u5bfe\u8c61\u30c7\u30fc\u30bf\u3001\u540c\u3058\u53d6\u5f97\u65b9\u6cd5\u3067\u6bd4\u3079\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro cbp-has-line-numbers\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;--cbp-line-number-color:#d8dee9ff;--cbp-line-number-width:calc(2 * 0.6 * .875rem);line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:flex;align-items:center;padding:16px 0 0 16px;width:100%;text-align:left;background-color:#2e3440\"><span style=\"background:#c8d0e0;padding:0.3rem 0.5rem 0.2rem;border-radius:1rem;font-size:0.8em;line-height:1;height:1.25rem;text-align:center;display:inline-flex;align-items:center;justify-content:center;color:#2e3440\">Markdown<\/span><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><pre class=\"code-block-pro-copy-button-pre\" aria-hidden=\"true\"><textarea class=\"code-block-pro-copy-button-textarea\" tabindex=\"-1\" aria-hidden=\"true\" readonly>\u4fee\u6b63\u524d:\nOperation: TABLE ACCESS FULL\nRows:      150000\nCost:      9800\nPredicate: filter(\"CUSTOMER_ID\"=1001 AND \"ORDER_DATE\">=DATE '2026-07-01')\n\n\u4fee\u6b63\u5f8c:\nOperation: INDEX RANGE SCAN + TABLE ACCESS BY INDEX ROWID\nRows:      120\nCost:      18\nPredicate: access(\"CUSTOMER_ID\"=1001 AND \"ORDER_DATE\">=DATE '2026-07-01')<\/textarea><\/pre><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">\u4fee\u6b63\u524d:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Operation: TABLE ACCESS FULL<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Rows:      150000<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Cost:      9800<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Predicate: filter(&quot;CUSTOMER_ID&quot;=1001 AND &quot;ORDER_DATE&quot;&gt;=DATE &#39;2026-07-01&#39;)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">\u4fee\u6b63\u5f8c:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Operation: INDEX RANGE SCAN + TABLE ACCESS BY INDEX ROWID<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Rows:      120<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Cost:      18<\/span><\/span>\n<span class=\"line\"><span style=\"color: #D8DEE9FF\">Predicate: access(&quot;CUSTOMER_ID&quot;=1001 AND &quot;ORDER_DATE&quot;&gt;=DATE &#39;2026-07-01&#39;)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u3088\u3046\u306b\u4e26\u3079\u308b\u3068\u3001\u5358\u306b\u901f\u304f\u306a\u3063\u305f\u3060\u3051\u3067\u306a\u304f\u3001\u3069\u3053\u304c\u5909\u308f\u3063\u305f\u304b\u3092\u8aac\u660e\u3067\u304d\u307e\u3059\u3002 \u5b9f\u884c\u6642\u9593\u3060\u3051\u3092\u6b8b\u3059\u3088\u308a\u3001\u30ec\u30d3\u30e5\u30fc\u3084\u30ea\u30ea\u30fc\u30b9\u5224\u65ad\u3067\u4f7f\u3044\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\">\u4fee\u6b63\u524d\u5f8c\u306e\u6bd4\u8f03\u3067\u306f\u3001\u5b9f\u884c\u6642\u9593\u3001Rows\u3001Operation\u3001Predicate Information\u3092\u4e26\u3079\u307e\u3059\u3002<\/span> \u6570\u5b57\u3060\u3051\u3067\u306f\u306a\u304f\u3001\u8aad\u307f\u65b9\u3082\u30bb\u30c3\u30c8\u3067\u6b8b\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u672c\u756a\u53cd\u6620\u524d\u306b\u30c7\u30fc\u30bf\u91cf\u3068\u6642\u9593\u5e2f\u3092\u78ba\u8a8d\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u691c\u8a3c\u74b0\u5883\u3067\u901f\u304f\u3066\u3082\u3001\u672c\u756a\u3067\u540c\u3058\u3088\u3046\u306b\u52d5\u304f\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002 \u30c7\u30fc\u30bf\u91cf\u3001\u7d71\u8a08\u60c5\u5831\u3001\u540c\u6642\u5b9f\u884c\u3001\u6642\u9593\u5e2f\u304c\u9055\u3046\u304b\u3089\u3067\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7279\u306b\u3001\u591c\u9593\u30d0\u30c3\u30c1\u3084\u6708\u672b\u51e6\u7406\u3067\u306f\u3001\u672c\u756a\u3060\u3051\u4ef6\u6570\u304c\u8df3\u306d\u307e\u3059\u3002 \u753b\u9762\u691c\u7d22\u3067\u306f\u554f\u984c\u306a\u304f\u3066\u3082\u3001\u6708\u672b\u7de0\u3081\u306e\u96c6\u8a08\u3067\u306f\u9045\u304f\u306a\u308b\u3002 \u691c\u8a3c\u30c7\u30fc\u30bf\u304c\u8584\u3044\u3068\u3001\u3053\u3053\u3092\u898b\u843d\u3068\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u756a\u53cd\u6620\u524d\u306b\u306f\u3001\u6b21\u306e\u89b3\u70b9\u3092\u898b\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"wp-block-table\" style=\"margin-bottom:2em\"><table><thead><tr><th>\u89b3\u70b9<\/th><th>\u78ba\u8a8d\u5185\u5bb9<\/th><\/tr><\/thead><tbody><tr><td>\u30c7\u30fc\u30bf\u91cf<\/td><td>\u691c\u8a3c\u74b0\u5883\u3068\u672c\u756a\u76f8\u5f53\u3067\u5bfe\u8c61\u30c6\u30fc\u30d6\u30eb\u306e\u4ef6\u6570\u5dee\u304c\u5927\u304d\u304f\u306a\u3044\u304b<\/td><\/tr><tr><td>\u7d71\u8a08\u60c5\u5831<\/td><td>\u5b9f\u884c\u8a08\u753b\u306e\u524d\u63d0\u306b\u306a\u308b\u7d71\u8a08\u60c5\u5831\u304c\u6975\u7aef\u306b\u53e4\u304f\u306a\u3044\u304b<\/td><\/tr><tr><td>\u6642\u9593\u5e2f<\/td><td>\u540c\u6642\u306b\u8d70\u308b\u30d0\u30c3\u30c1\u3084\u96c6\u8a08\u51e6\u7406\u304c\u306a\u3044\u304b<\/td><\/tr><tr><td>\u66f4\u65b0\u51e6\u7406<\/td><td>\u8ffd\u52a0\u3057\u305f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u767b\u9332\u3084\u66f4\u65b0\u3092\u9045\u304f\u3057\u306a\u3044\u304b<\/td><\/tr><tr><td>\u518d\u73fe\u6761\u4ef6<\/td><td>\u9045\u304b\u3063\u305f\u6761\u4ef6\u3068\u540c\u3058\u30d0\u30a4\u30f3\u30c9\u5024\u3067\u78ba\u8a8d\u3057\u305f\u304b<\/td><\/tr><\/tbody><\/table><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u78ba\u8a8d\u3092\u98db\u3070\u3059\u3068\u3001\u691c\u8a3c\u3067\u306f\u901f\u304b\u3063\u305f\u306e\u306b\u672c\u756a\u3067\u623b\u308b\u3001\u3068\u3044\u3046\u8a71\u306b\u306a\u308a\u307e\u3059\u3002 \u4fdd\u5b88\u3067\u306f\u3001SQL\u305d\u306e\u3082\u306e\u3060\u3051\u3067\u306a\u304f\u3001\u52d5\u304f\u6642\u9593\u3068\u30c7\u30fc\u30bf\u91cf\u307e\u3067\u542b\u3081\u3066\u5224\u65ad\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u9045\u3044SQL\u8abf\u67fb\u306f\u66f8\u304d\u63db\u3048\u3088\u308a\u5148\u306b\u5f53\u305f\u308a\u3092\u4ed8\u3051\u308b<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u9045\u3044SQL\u3092\u898b\u305f\u3068\u304d\u3001\u6700\u521d\u306b\u3084\u308b\u3053\u3068\u306f\u9b54\u6cd5\u306e\u66f8\u304d\u63db\u3048\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002 \u3069\u3053\u3067\u591a\u304f\u8aad\u3093\u3067\u3044\u308b\u304b\u3001\u6761\u4ef6\u304c\u52b9\u3044\u3066\u3044\u308b\u304b\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u3069\u3046\u4f7f\u3063\u3066\u3044\u308b\u304b\u3092\u5148\u306b\u62bc\u3055\u3048\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u305d\u306e\u305f\u3081\u306b\u3001\u5b9f\u884c\u8a08\u753b\u3092\u53d6\u308a\u307e\u3059\u3002 <code>EXPLAIN PLAN FOR<\/code> \u3067\u78ba\u8a8d\u5bfe\u8c61\u306eSQL\u3092\u6307\u5b9a\u3057\u3001<code>DBMS_XPLAN.DISPLAY()<\/code> \u3067\u8868\u793a\u3059\u308b\u3002 <code>TABLE ACCESS FULL<\/code>\u3001<code>INDEX RANGE SCAN<\/code>\u3001<code>Rows<\/code>\u3001<code>Cost<\/code>\u3001<code>Predicate Information<\/code> \u3092\u9806\u756a\u306b\u898b\u308b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6700\u5f8c\u306b\u3001\u696d\u52d9\u6761\u4ef6\u3078\u623b\u3057\u307e\u3059\u3002 \u672c\u5f53\u306b\u305d\u306e\u671f\u9593\u3092\u691c\u7d22\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u304b\u3002 \u305d\u306e\u30b9\u30c6\u30fc\u30bf\u30b9\u3092\u542b\u3081\u308b\u5fc5\u8981\u304c\u3042\u308b\u306e\u304b\u3002 \u65e2\u5b58\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3067\u8db3\u308a\u308b\u306e\u304b\u3002 \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8db3\u3059\u306a\u3089\u66f4\u65b0\u51e6\u7406\u306b\u5f71\u97ff\u3057\u306a\u3044\u304b\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_orange\"><strong>SQL\u306e\u4fee\u6b63\u7406\u7531\u3092\u8aac\u660e\u3067\u304d\u306a\u3044\u307e\u307e\u66f8\u304d\u63db\u3048\u308b\u3068\u3001\u6b21\u306e\u8abf\u67fb\u3067\u307e\u305f\u8ff7\u3044\u307e\u3059<\/strong><\/span> \u5b9f\u884c\u8a08\u753b\u3001\u4ef6\u6570\u3001\u6761\u4ef6\u3001\u4fee\u6b63\u524d\u5f8c\u306e\u5dee\u3092\u6b8b\u3057\u3066\u304a\u304f\u3068\u3001\u540c\u3058\u7a2e\u985e\u306e\u9045\u3055\u306b\u5bfe\u5fdc\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Oracle\u306e\u5b9f\u884c\u8a08\u753b\u306f\u3001\u5168\u90e8\u3092\u4e00\u5ea6\u306b\u8aad\u3082\u3046\u3068\u3059\u308b\u3068\u3057\u3093\u3069\u3044\u3067\u3059\u3002 \u6700\u521d\u306f\u3001\u30a2\u30af\u30bb\u30b9\u65b9\u6cd5\u3001\u884c\u6570\u3001\u6761\u4ef6\u306e\u52b9\u304d\u65b9\u3060\u3051\u3067\u5341\u5206\u3067\u3059\u3002 \u305d\u3053\u307e\u3067\u898b\u308c\u3070\u3001\u5c11\u306a\u304f\u3068\u3082\u300c\u306a\u3093\u3068\u306a\u304f\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u8db3\u3059\u300d\u304b\u3089\u306f\u629c\u3051\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><span class=\"swl-marker mark_yellow\">\u9045\u3044SQL\u8abf\u67fb\u3067\u306f\u3001\u66f8\u304d\u63db\u3048\u308b\u524d\u306b\u3001\u8aad\u3080\u91cf\u3068\u6761\u4ef6\u306e\u52b9\u304d\u65b9\u3092\u898b\u307e\u3059\u3002<\/span> \u3053\u306e\u9806\u756a\u3092\u56fa\u5b9a\u3057\u3066\u304a\u304f\u3068\u3001\u4fdd\u5b88\u4f5c\u696d\u306e\u8aac\u660e\u304c\u697d\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Oracle\u3067SQL\u304c\u9045\u3044\u3068\u304d\u306b\u3001EXPLAIN PLAN\u3068DBMS_XPLAN\u3067\u5b9f\u884c\u8a08\u753b\u3092\u53d6\u308a\u3001\u4ef6\u6570\u3001\u6761\u4ef6\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3001Predicate Information\u3092\u3069\u3046\u78ba\u8a8d\u3059\u308b\u304b\u3092\u6574\u7406\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":1857,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"swell_btn_cv_data":"","footnotes":""},"categories":[242],"tags":[250,251,252,253],"class_list":["post-1845","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sql-database","tag-oracle","tag-sql","tag-252","tag-253"],"_links":{"self":[{"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=\/wp\/v2\/posts\/1845","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1845"}],"version-history":[{"count":2,"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=\/wp\/v2\/posts\/1845\/revisions"}],"predecessor-version":[{"id":1847,"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=\/wp\/v2\/posts\/1845\/revisions\/1847"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=\/wp\/v2\/media\/1857"}],"wp:attachment":[{"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.nexive.tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}