{"id":118172,"date":"2026-10-26T14:32:26","date_gmt":"2026-10-26T06:32:26","guid":{"rendered":"https:\/\/www.wsisp.com\/helps\/118172.html"},"modified":"2026-10-26T14:32:26","modified_gmt":"2026-10-26T06:32:26","slug":"%e3%80%90mysql%e7%af%87%e7%ac%ac%e5%85%ab%e7%af%87%e3%80%91%e7%b4%a2%e5%bc%95%e5%ba%95%e5%b1%82%e5%ae%9e%e7%8e%b0","status":"publish","type":"post","link":"https:\/\/www.wsisp.com\/helps\/118172.html","title":{"rendered":"\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0"},"content":{"rendered":"<p>\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u53ea\u8981\u8868\u6570\u636e\u91cf\u7a0d\u5fae\u5927\u4e00\u70b9&#xff0c;\u6162\u67e5\u8be2\u5c31\u4f1a\u6210\u4e3a\u7ed5\u4e0d\u5f00\u7684\u95ee\u9898\u3002\u800c\u89e3\u51b3\u6162\u67e5\u8be2\u6700\u76f4\u63a5\u3001\u6700\u6709\u6548\u7684\u624b\u6bb5&#xff0c;\u5f80\u5f80\u5c31\u662f\u52a0\u7d22\u5f15\u3002\u4f46\u5f88\u591a\u540c\u5b66\u5bf9\u7d22\u5f15\u7684\u7406\u89e3\u505c\u7559\u5728\u201c\u52a0\u4e86\u5c31\u5feb\u201d\u7684\u5c42\u9762&#xff0c;\u9762\u8bd5\u65f6\u88ab\u8ffd\u95ee\u201c\u7d22\u5f15\u5e95\u5c42\u662f\u600e\u4e48\u5b9e\u73b0\u7684\u201d\u5c31\u5bb9\u6613\u5361\u58f3\u3002\u672c\u6587\u4ece\u7d22\u5f15\u7684\u672c\u8d28\u51fa\u53d1&#xff0c;\u4e00\u6b65\u6b65\u62c6\u89e3 MySQL \u7d22\u5f15\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784&#xff0c;\u91cd\u70b9\u8bb2\u6e05\u695a B&#043; \u6811\u4e3a\u4ec0\u4e48\u80fd\u6210\u4e3a InnoDB \u7684\u9ed8\u8ba4\u9009\u62e9\u3002<\/p>\n<h3>\u4e00\u3001\u7d22\u5f15\u5230\u5e95\u662f\u4ec0\u4e48<\/h3>\n<p>\u4ece\u6700\u6734\u7d20\u7684\u89d2\u5ea6\u7406\u89e3&#xff0c;\u7d22\u5f15\u5c31\u662f\u4e00\u79cd\u5e2e\u52a9 MySQL \u9ad8\u6548\u83b7\u53d6\u6570\u636e\u7684\u6570\u636e\u7ed3\u6784\u3002\u5b83\u7684\u4f5c\u7528\u7c7b\u4f3c\u4e8e\u4e66\u7c4d\u7684\u76ee\u5f55&#xff1a;\u5982\u679c\u6ca1\u6709\u76ee\u5f55&#xff0c;\u60f3\u627e\u67d0\u4e00\u7ae0\u5185\u5bb9\u53ea\u80fd\u4ece\u7b2c\u4e00\u9875\u7ffb\u5230\u6700\u540e\u4e00\u9875&#xff1b;\u6709\u4e86\u76ee\u5f55&#xff0c;\u5c31\u80fd\u76f4\u63a5\u5b9a\u4f4d\u5230\u76ee\u6807\u9875\u7801\u3002\u6240\u4ee5\u8fd9\u4e2a\u76ee\u5f55\u7684\u8bbe\u7f6e\u662f\u975e\u5e38\u5173\u952e\u7684&#xff0c;\u6211\u4eec\u7684\u76ee\u5f55\u6709\u5f88\u591a\u79cd\u505a\u6cd5&#xff0c;\u6709\u4e9b\u7684\u76ee\u5f55\u6e05\u6670\u660e\u4e86&#xff0c;\u800c\u6709\u4e9b\u7684\u5f88\u96be\u5f88\u5feb\u7684\u5b9a\u4f4d\u5230\u9700\u8981\u7684\u5730\u65b9&#xff0c;\u56e0\u6b64\u8fd9\u4e2a\u76ee\u5f55\u7684\u5236\u4f5c\u4e5f\u662f\u4e00\u4e2a\u5173\u952e\u90e8\u5206\u3002<\/p>\n<p>\u628a\u8fd9\u53e5\u8bdd\u62c6\u5f00\u770b&#xff0c;\u6709\u4e09\u4e2a\u5173\u952e\u70b9&#xff1a;<\/p>\n<ul>\n<li>\u672c\u8d28\u662f\u6570\u636e\u7ed3\u6784&#xff1a;\u7d22\u5f15\u4e0d\u662f\u201c\u9b54\u6cd5\u201d&#xff0c;\u5b83\u672c\u8eab\u4e5f\u8981\u5360\u7528\u78c1\u76d8\u7a7a\u95f4&#xff0c;\u4e5f\u9700\u8981\u7ef4\u62a4\u3002<\/li>\n<li>\u76ee\u7684\u662f\u9ad8\u6548\u83b7\u53d6\u6570\u636e&#xff1a;\u7d22\u5f15\u628a\u201c\u5168\u8868\u626b\u63cf\u201d\u7684 O(n) \u67e5\u627e&#xff0c;\u4f18\u5316\u6210\u8fd1\u4f3c O(log n) \u7684\u67e5\u627e\u3002<\/li>\n<li>\u4ee3\u4ef7\u662f\u7a7a\u95f4\u548c\u7ef4\u62a4\u6210\u672c&#xff1a;\u7d22\u5f15\u8d8a\u591a&#xff0c;\u5199\u5165\u65f6\u9700\u8981\u7684\u989d\u5916\u66f4\u65b0\u8d8a\u591a&#xff0c;\u5360\u7528\u7684\u78c1\u76d8\u4e5f\u8d8a\u5927\u3002<\/li>\n<\/ul>\n<p>\u5728 InnoDB \u4e2d&#xff0c;\u7d22\u5f15\u548c\u6570\u636e\u662f\u5b58\u653e\u5728\u4e00\u8d77\u7684&#xff0c;\u7d22\u5f15\u5373\u6570\u636e&#xff0c;\u6570\u636e\u5373\u7d22\u5f15\u3002\u8fd9\u4e00\u70b9\u975e\u5e38\u5173\u952e&#xff0c;\u540e\u9762\u8bb2\u805a\u7c07\u7d22\u5f15\u65f6\u4f1a\u53cd\u590d\u7528\u5230\u3002<\/p>\n<h3>\u4e8c\u3001\u4e3a\u4ec0\u4e48\u4e0d\u7528\u4e8c\u53c9\u6811\u3001\u7ea2\u9ed1\u6811\u6216\u54c8\u5e0c<\/h3>\n<p>\u65e2\u7136\u7d22\u5f15\u662f\u6570\u636e\u7ed3\u6784&#xff0c;\u90a3\u4e3a\u4ec0\u4e48 MySQL \u4e0d\u76f4\u63a5\u7528\u6700\u719f\u6089\u7684\u4e8c\u53c9\u6811&#xff1f;\u539f\u56e0\u5728\u4e8e\u78c1\u76d8 IO \u7684\u7279\u6027\u3002<\/p>\n<h4>2.1 \u4e8c\u53c9\u641c\u7d22\u6811\u7684\u9000\u5316\u95ee\u9898<\/h4>\n<p>\u666e\u901a\u4e8c\u53c9\u641c\u7d22\u6811\u5728\u6570\u636e\u6709\u5e8f\u63d2\u5165\u65f6\u4f1a\u9000\u5316\u6210\u94fe\u8868&#xff0c;\u67e5\u627e\u590d\u6742\u5ea6\u4ece O(log n) \u9000\u5316\u4e3a O(n)\u3002\u5373\u4f7f\u6362\u6210\u5e73\u8861\u4e8c\u53c9\u6811&#xff08;AVL&#xff09;\u6216\u7ea2\u9ed1\u6811&#xff0c;\u6811\u7684\u9ad8\u5ea6\u4f9d\u7136\u504f\u9ad8\u3002\u5047\u8bbe\u4e00\u5f20\u8868\u6709\u4e00\u5343\u4e07\u6761\u6570\u636e&#xff0c;\u7ea2\u9ed1\u6811\u7684\u6811\u9ad8\u5927\u7ea6\u5728 20 \u5230 30 \u5c42&#xff0c;\u6bcf\u4e0b\u964d\u4e00\u5c42\u5c31\u53ef\u80fd\u610f\u5473\u7740\u4e00\u6b21\u78c1\u76d8 IO&#xff0c;\u8fd9\u4e2a\u4ee3\u4ef7\u662f\u65e0\u6cd5\u63a5\u53d7\u7684\u3002\u56e0\u6b64\u8fd9\u4e2a\u65b9\u6cd5\u8fd8\u662f\u884c\u4e0d\u901a&#xff0c;\u53ea\u80fd\u9002\u7528\u4e8e\u90a3\u4e9b\u6570\u636e\u91cf\u5c11\u7684\u4e00\u4e9b\u8868\u3002<\/p>\n<h4>2.2 \u54c8\u5e0c\u7d22\u5f15\u7684\u5c40\u9650<\/h4>\n<p>\u54c8\u5e0c\u7d22\u5f15\u7684\u7b49\u503c\u67e5\u8be2\u662f O(1)&#xff0c;\u770b\u8d77\u6765\u5f88\u7f8e&#xff0c;\u4f46\u5b83\u6709\u4e24\u4e2a\u81f4\u547d\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>\u4e0d\u652f\u6301\u8303\u56f4\u67e5\u8be2&#xff0c;\u56e0\u4e3a\u54c8\u5e0c\u503c\u672c\u8eab\u6ca1\u6709\u987a\u5e8f\u6027\u3002<\/li>\n<li>\u4e0d\u652f\u6301\u6392\u5e8f&#xff0c;\u4e5f\u65e0\u6cd5\u5229\u7528\u6700\u5de6\u524d\u7f00\u539f\u5219\u3002<\/li>\n<\/ul>\n<p>\u6240\u4ee5\u54c8\u5e0c\u7d22\u5f15\u53ea\u9002\u5408\u7b49\u503c\u67e5\u8be2\u573a\u666f&#xff0c;InnoDB \u7684\u81ea\u9002\u5e94\u54c8\u5e0c\u7d22\u5f15\u4e5f\u662f\u5185\u90e8\u4f18\u5316&#xff0c;\u7528\u6237\u65e0\u6cd5\u76f4\u63a5\u521b\u5efa\u3002<\/p>\n<h4>2.3 \u78c1\u76d8 IO \u624d\u662f\u771f\u6b63\u7684\u74f6\u9888<\/h4>\n<p>\u6570\u636e\u5e93\u7684\u6570\u636e\u5b58\u653e\u5728\u78c1\u76d8\u4e0a&#xff0c;\u78c1\u76d8\u8bfb\u53d6\u4ee5\u9875&#xff08;Page&#xff09;\u4e3a\u5355\u4f4d&#xff0c;InnoDB \u9ed8\u8ba4\u4e00\u9875 16KB\u3002\u4e00\u6b21\u78c1\u76d8 IO \u4f1a\u628a\u6574\u9875\u6570\u636e\u8bfb\u5165\u5185\u5b58\u3002\u56e0\u6b64&#xff0c;\u7d22\u5f15\u7ed3\u6784\u8bbe\u8ba1\u7684\u6838\u5fc3\u76ee\u6807\u4e0d\u662f\u201c\u6bd4\u8f83\u6b21\u6570\u6700\u5c11\u201d&#xff0c;\u800c\u662f\u8ba9\u6811\u7684\u9ad8\u5ea6\u5c3d\u53ef\u80fd\u4f4e&#xff0c;\u4ece\u800c\u51cf\u5c11\u78c1\u76d8 IO \u6b21\u6570\u3002\u8fd9\u5c31\u5f15\u51fa\u4e86\u591a\u8def\u5e73\u8861\u67e5\u627e\u6811\u3002<\/p>\n<h3>\u4e09\u3001B \u6811\u4e0e B&#043; \u6811\u7684\u7ed3\u6784\u5bf9\u6bd4<\/h3>\n<h4>3.1 B \u6811\u7684\u57fa\u672c\u5f62\u6001<\/h4>\n<p>B \u6811\u662f\u4e00\u79cd\u591a\u8def\u5e73\u8861\u67e5\u627e\u6811&#xff0c;\u4e00\u4e2a\u8282\u70b9\u53ef\u4ee5\u5b58\u653e\u591a\u4e2a key \u548c\u591a\u4e2a\u5b50\u8282\u70b9\u6307\u9488\u3002\u76f8\u6bd4\u4e8c\u53c9\u6811&#xff0c;B \u6811\u628a\u201c\u7626\u9ad8\u201d\u7684\u5f62\u6001\u53d8\u6210\u4e86\u201c\u77ee\u80d6\u201d&#xff0c;\u6811\u9ad8\u5927\u5e45\u964d\u4f4e\u3002\u4f46 B \u6811\u7684\u975e\u53f6\u5b50\u8282\u70b9\u4e5f\u5b58\u50a8\u6570\u636e&#xff0c;\u8fd9\u4f1a\u5e26\u6765\u4e24\u4e2a\u95ee\u9898&#xff1a;<\/p>\n<ul>\n<li>\u6bcf\u4e2a\u8282\u70b9\u80fd\u5bb9\u7eb3\u7684 key \u6570\u91cf\u53d8\u5c11&#xff0c;\u6811\u9ad8\u76f8\u5bf9\u66f4\u9ad8\u3002<\/li>\n<li>\u8303\u56f4\u67e5\u8be2\u9700\u8981\u5728\u6811\u4e2d\u53cd\u590d\u4e2d\u5e8f\u904d\u5386&#xff0c;\u6548\u7387\u4e0d\u591f\u7a33\u5b9a\u3002<\/li>\n<\/ul>\n<h4>3.2 B&#043; \u6811\u7684\u6539\u8fdb<\/h4>\n<p>B&#043; \u6811\u5728 B \u6811\u57fa\u7840\u4e0a\u505a\u4e86\u4e09\u70b9\u5173\u952e\u6539\u8fdb&#xff1a;<\/p>\n<li>\u975e\u53f6\u5b50\u8282\u70b9\u53ea\u5b58\u7d22\u5f15\u952e&#xff0c;\u4e0d\u5b58\u6570\u636e&#xff0c;\u56e0\u6b64\u4e00\u4e2a 16KB \u7684\u9875\u80fd\u653e\u4e0b\u66f4\u591a\u7684\u952e&#xff0c;\u6811\u9ad8\u66f4\u4f4e\u3002<\/li>\n<li>\u6240\u6709\u6570\u636e\u90fd\u5b58\u653e\u5728\u53f6\u5b50\u8282\u70b9&#xff0c;\u67e5\u8be2\u8def\u5f84\u957f\u5ea6\u4e00\u81f4&#xff0c;\u6027\u80fd\u7a33\u5b9a\u3002<\/li>\n<li>\u53f6\u5b50\u8282\u70b9\u4e4b\u95f4\u7528\u53cc\u5411\u94fe\u8868\u8fde\u63a5&#xff0c;\u8303\u56f4\u67e5\u8be2\u53ea\u9700\u987a\u7740\u94fe\u8868\u626b\u63cf\u5373\u53ef\u3002<\/li>\n<p>\u4e0b\u9762\u7528\u4e00\u5f20\u7b80\u5316\u7684\u7ed3\u6784\u56fe\u8bf4\u660e B&#043; \u6811\u7684\u5f62\u6001&#xff1a;<\/p>\n<p>flowchart TD<br \/>\n    A[&#034;\u6839\u8282\u70b9: 15 | 30&#034;] &#8211;&gt; B[&#034;\u5185\u90e8\u8282\u70b9: 5 | 10&#034;]<br \/>\n    A &#8211;&gt; C[&#034;\u5185\u90e8\u8282\u70b9: 20 | 25&#034;]<br \/>\n    A &#8211;&gt; D[&#034;\u5185\u90e8\u8282\u70b9: 35 | 40&#034;]<br \/>\n    B &#8211;&gt; E[&#034;\u53f6\u5b50: 1,3,5&#034;]<br \/>\n    B &#8211;&gt; F[&#034;\u53f6\u5b50: 7,9,10&#034;]<br \/>\n    C &#8211;&gt; G[&#034;\u53f6\u5b50: 16,18,20&#034;]<br \/>\n    C &#8211;&gt; H[&#034;\u53f6\u5b50: 22,24,25&#034;]<br \/>\n    D &#8211;&gt; I[&#034;\u53f6\u5b50: 32,34,35&#034;]<br \/>\n    D &#8211;&gt; J[&#034;\u53f6\u5b50: 38,40,42&#034;]<br \/>\n    E -.\u53cc\u5411\u94fe\u8868.-&gt; F<br \/>\n    F -.\u53cc\u5411\u94fe\u8868.-&gt; G<br \/>\n    G -.\u53cc\u5411\u94fe\u8868.-&gt; H<br \/>\n    H -.\u53cc\u5411\u94fe\u8868.-&gt; I<br \/>\n    I -.\u53cc\u5411\u94fe\u8868.-&gt; J<\/p>\n<p>\u53ef\u4ee5\u770b\u5230&#xff0c;\u5185\u90e8\u8282\u70b9\u53ea\u8d1f\u8d23\u5bfc\u822a&#xff0c;\u771f\u6b63\u7684\u6570\u636e\u5168\u90e8\u5728\u53f6\u5b50\u5c42&#xff0c;\u5e76\u4e14\u53f6\u5b50\u5c42\u662f\u4e00\u6761\u6709\u5e8f\u94fe\u8868\u3002\u8fd9\u6b63\u662f B&#043; \u6811\u80fd\u540c\u65f6\u517c\u987e\u7b49\u503c\u67e5\u8be2\u548c\u8303\u56f4\u67e5\u8be2\u7684\u539f\u56e0\u3002<\/p>\n<h3>\u56db\u3001InnoDB \u7684\u7d22\u5f15\u5b9e\u73b0&#xff1a;\u805a\u7c07\u7d22\u5f15\u4e0e\u4e8c\u7ea7\u7d22\u5f15<\/h3>\n<h4>4.1 \u805a\u7c07\u7d22\u5f15<\/h4>\n<p>InnoDB \u4f7f\u7528\u4e3b\u952e\u6784\u5efa\u805a\u7c07\u7d22\u5f15&#xff08;Clustered Index&#xff09;&#xff0c;\u53f6\u5b50\u8282\u70b9\u5b58\u653e\u7684\u662f\u6574\u884c\u6570\u636e\u3002\u4e5f\u5c31\u662f\u8bf4&#xff0c;\u805a\u7c07\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u5c31\u662f\u6570\u636e\u9875\u672c\u8eab\u3002\u5982\u679c\u6ca1\u6709\u663e\u5f0f\u5b9a\u4e49\u4e3b\u952e&#xff0c;InnoDB \u4f1a\u9009\u62e9\u4e00\u4e2a\u552f\u4e00\u975e\u7a7a\u7d22\u5f15\u4ee3\u66ff&#xff0c;\u518d\u6ca1\u6709\u5c31\u751f\u6210\u4e00\u4e2a\u9690\u85cf\u7684 6 \u5b57\u8282 row_id\u3002<\/p>\n<p>\u8fd9\u4e5f\u89e3\u91ca\u4e86\u4e00\u4e2a\u5e38\u89c1\u73b0\u8c61&#xff1a;\u6309\u4e3b\u952e\u67e5\u8be2\u6700\u5feb&#xff0c;\u56e0\u4e3a\u4e00\u6b21 B&#043; \u6811\u67e5\u627e\u5c31\u80fd\u62ff\u5230\u6574\u884c\u6570\u636e\u3002<\/p>\n<h4>4.2 \u4e8c\u7ea7\u7d22\u5f15\u4e0e\u56de\u8868<\/h4>\n<p>\u9664\u4e86\u4e3b\u952e\u7d22\u5f15&#xff0c;\u6211\u4eec\u521b\u5efa\u7684\u5176\u4ed6\u7d22\u5f15\u90fd\u53eb\u4e8c\u7ea7\u7d22\u5f15&#xff08;Secondary Index&#xff09;\u6216\u8f85\u52a9\u7d22\u5f15\u3002\u4e8c\u7ea7\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u5b58\u653e\u7684\u662f\u7d22\u5f15\u5217\u7684\u503c &#043; \u4e3b\u952e\u503c&#xff0c;\u800c\u4e0d\u662f\u6574\u884c\u6570\u636e\u3002<\/p>\n<p>\u56e0\u6b64&#xff0c;\u901a\u8fc7\u4e8c\u7ea7\u7d22\u5f15\u67e5\u8be2\u975e\u7d22\u5f15\u5217\u65f6&#xff0c;\u9700\u8981\u5148\u67e5\u5230\u4e3b\u952e&#xff0c;\u518d\u62ff\u4e3b\u952e\u53bb\u805a\u7c07\u7d22\u5f15\u91cc\u67e5\u4e00\u6b21\u5b8c\u6574\u6570\u636e&#xff0c;\u8fd9\u4e2a\u8fc7\u7a0b\u53eb\u56de\u8868\u3002\u56de\u8868\u610f\u5473\u7740\u4e24\u6b21 B&#043; \u6811\u67e5\u627e&#xff0c;\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u201c\u5c3d\u91cf\u4f7f\u7528\u8986\u76d6\u7d22\u5f15\u201d\u4f1a\u6210\u4e3a\u4f18\u5316\u5e38\u8bc6\u3002<\/p>\n<h4>4.3 \u8986\u76d6\u7d22\u5f15<\/h4>\n<p>\u5982\u679c\u67e5\u8be2\u9700\u8981\u7684\u5217\u5168\u90e8\u5305\u542b\u5728\u4e8c\u7ea7\u7d22\u5f15\u4e2d&#xff0c;\u5c31\u65e0\u9700\u56de\u8868&#xff0c;\u8fd9\u79cd\u7d22\u5f15\u79f0\u4e3a\u8986\u76d6\u7d22\u5f15\u3002\u4f8b\u5982&#xff1a;<\/p>\n<p>&#8212; \u5047\u8bbe\u5b58\u5728\u8054\u5408\u7d22\u5f15 idx_name_age (name, age)<br \/>\nSELECT name, age FROM user WHERE name &#061; &#039;Tom&#039;;<\/p>\n<p>\u8fd9\u6761\u67e5\u8be2\u53ea\u9700\u8981\u626b\u63cf idx_name_age \u5c31\u80fd\u62ff\u5230\u5168\u90e8\u7ed3\u679c&#xff0c;\u6267\u884c\u8ba1\u5212\u4e2d Extra \u4f1a\u663e\u793a Using index\u3002<\/p>\n<h3>\u4e94\u3001\u7d22\u5f15\u7684\u7269\u7406\u5b58\u50a8\u4e0e\u9875\u7ed3\u6784<\/h3>\n<p>InnoDB \u4ee5\u9875\u4e3a\u5355\u4f4d\u7ba1\u7406\u6570\u636e&#xff0c;\u7d22\u5f15\u9875\u7684\u7ed3\u6784\u5927\u81f4\u5982\u4e0b&#xff1a;<\/p>\n<table>\n<tr>\u533a\u57df\u4f5c\u7528<\/tr>\n<tbody>\n<tr>\n<td>File Header<\/td>\n<td>\u8bb0\u5f55\u9875\u7684\u7c7b\u578b\u3001\u9875\u53f7\u3001\u4e0a\u4e0b\u9875\u6307\u9488\u7b49\u4fe1\u606f<\/td>\n<\/tr>\n<tr>\n<td>Page Header<\/td>\n<td>\u8bb0\u5f55\u9875\u5185\u8bb0\u5f55\u6570\u3001\u7a7a\u95f2\u7a7a\u95f4\u4f4d\u7f6e\u3001\u6700\u5927\u4e8b\u52a1 ID \u7b49<\/td>\n<\/tr>\n<tr>\n<td>Infimum &#043; Supremum<\/td>\n<td>\u9875\u5185\u865a\u62df\u7684\u6700\u5c0f\u548c\u6700\u5927\u8bb0\u5f55&#xff0c;\u4f5c\u4e3a\u94fe\u8868\u8fb9\u754c<\/td>\n<\/tr>\n<tr>\n<td>User Records<\/td>\n<td>\u5b9e\u9645\u5b58\u50a8\u7684\u884c\u8bb0\u5f55&#xff0c;\u6309\u4e3b\u952e\u987a\u5e8f\u7ec4\u6210\u5355\u5411\u94fe\u8868<\/td>\n<\/tr>\n<tr>\n<td>Page Directory<\/td>\n<td>\u9875\u5185\u8bb0\u5f55\u7684\u7a00\u758f\u76ee\u5f55&#xff0c;\u7528\u4e8e\u9875\u5185\u4e8c\u5206\u67e5\u627e<\/td>\n<\/tr>\n<tr>\n<td>File Trailer<\/td>\n<td>\u6821\u9a8c\u9875\u662f\u5426\u5b8c\u6574&#xff0c;\u914d\u5408\u5237\u76d8\u4fdd\u8bc1\u4e00\u81f4\u6027<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u9875\u5185\u8bb0\u5f55\u901a\u8fc7\u5355\u5411\u94fe\u8868\u4e32\u8054&#xff0c;Page Directory \u63d0\u4f9b\u7a00\u758f\u7d22\u5f15&#xff0c;\u4f7f\u5f97\u9875\u5185\u67e5\u627e\u4e5f\u80fd\u7528\u4e8c\u5206\u6cd5\u3002\u9875\u4e0e\u9875\u4e4b\u95f4\u5219\u901a\u8fc7 File Header \u4e2d\u7684\u524d\u540e\u6307\u9488\u5f62\u6210\u53cc\u5411\u94fe\u8868&#xff0c;\u8fd9\u5c31\u662f B&#043; \u6811\u53f6\u5b50\u5c42\u94fe\u8868\u7684\u7269\u7406\u57fa\u7840\u3002<\/p>\n<h3>\u516d\u3001\u8054\u5408\u7d22\u5f15\u4e0e\u6700\u5de6\u524d\u7f00\u539f\u5219<\/h3>\n<p>\u8054\u5408\u7d22\u5f15\u662f\u628a\u591a\u4e2a\u5217\u7ec4\u5408\u8d77\u6765\u5efa\u4e00\u68f5 B&#043; \u6811&#xff0c;\u6392\u5e8f\u89c4\u5219\u662f\u5148\u6309\u7b2c\u4e00\u5217\u6392\u5e8f&#xff0c;\u7b2c\u4e00\u5217\u76f8\u540c\u518d\u6309\u7b2c\u4e8c\u5217\u6392\u5e8f&#xff0c;\u4ee5\u6b64\u7c7b\u63a8\u3002\u8fd9\u76f4\u63a5\u51b3\u5b9a\u4e86\u6700\u5de6\u524d\u7f00\u539f\u5219&#xff1a;<\/p>\n<p>&#8212; \u8054\u5408\u7d22\u5f15 idx_abc (a, b, c)<br \/>\nSELECT * FROM t WHERE a &#061; 1 AND b &#061; 2;        &#8212; \u547d\u4e2d a\u3001b<br \/>\nSELECT * FROM t WHERE b &#061; 2 AND c &#061; 3;        &#8212; \u65e0\u6cd5\u4f7f\u7528\u7d22\u5f15<br \/>\nSELECT * FROM t WHERE a &#061; 1 AND c &#061; 3;        &#8212; \u53ea\u547d\u4e2d a<br \/>\nSELECT * FROM t WHERE a &#061; 1 AND b &gt; 2 AND c &#061; 3; &#8212; c \u65e0\u6cd5\u7528\u4e8e\u7d22\u5f15\u67e5\u627e<\/p>\n<p>\u7406\u89e3\u6700\u5de6\u524d\u7f00\u7684\u5173\u952e&#xff0c;\u662f\u628a\u5b83\u60f3\u8c61\u6210\u4e00\u672c\u5148\u6309\u59d3\u6c0f\u3001\u518d\u6309\u540d\u5b57\u6392\u5e8f\u7684\u7535\u8bdd\u7c3f&#xff1a;\u4f60\u53ea\u77e5\u9053\u540d\u5b57\u800c\u4e0d\u77e5\u9053\u59d3\u6c0f&#xff0c;\u662f\u65e0\u6cd5\u5feb\u901f\u5b9a\u4f4d\u7684\u3002<\/p>\n<h3>\u4e03\u3001\u7d22\u5f15\u5931\u6548\u7684\u5e38\u89c1\u573a\u666f<\/h3>\n<p>\u5efa\u4e86\u7d22\u5f15\u4e0d\u4ee3\u8868\u4e00\u5b9a\u7528\u5f97\u4e0a&#xff0c;\u4ee5\u4e0b\u573a\u666f\u5bb9\u6613\u5bfc\u81f4\u7d22\u5f15\u5931\u6548&#xff1a;<\/p>\n<p>\u8fd9\u4e2a\u6211\u5728\u524d\u9762\u5177\u4f53\u8bb2\u5230\u8fc7&#xff0c;\u4e0d\u4e86\u89e3\u7684\u53ef\u4ee5\u53bb\u770b\u524d\u51e0\u671f\u6587\u7ae0<\/p>\n<ul>\n<li>\u5bf9\u7d22\u5f15\u5217\u505a\u51fd\u6570\u8fd0\u7b97\u6216\u8868\u8fbe\u5f0f\u8ba1\u7b97&#xff0c;\u5982 WHERE YEAR(create_time) &#061; 2024\u3002<\/li>\n<li>\u9690\u5f0f\u7c7b\u578b\u8f6c\u6362&#xff0c;\u5982\u5b57\u7b26\u4e32\u5217\u7528\u6570\u5b57\u6bd4\u8f83 WHERE phone &#061; 13800000000\u3002<\/li>\n<li>\u4ee5\u901a\u914d\u7b26\u5f00\u5934\u7684\u6a21\u7cca\u67e5\u8be2&#xff0c;\u5982 LIKE &#039;%abc&#039;\u3002<\/li>\n<li>\u4f7f\u7528 OR \u4e14\u4e24\u4fa7\u5217\u6ca1\u6709\u90fd\u5efa\u7d22\u5f15\u3002<\/li>\n<li>\u8fdd\u53cd\u6700\u5de6\u524d\u7f00\u539f\u5219\u7684\u8054\u5408\u7d22\u5f15\u67e5\u8be2\u3002<\/li>\n<li>\u4f18\u5316\u5668\u5224\u65ad\u5168\u8868\u626b\u63cf\u66f4\u5feb&#xff0c;\u4f8b\u5982\u533a\u5206\u5ea6\u6781\u4f4e\u7684\u5217\u3002<\/li>\n<\/ul>\n<p>\u6392\u67e5\u65f6\u5efa\u8bae\u4f7f\u7528 EXPLAIN \u67e5\u770b type\u3001key\u3001rows \u548c Extra \u5b57\u6bb5&#xff0c;\u786e\u8ba4\u7d22\u5f15\u662f\u5426\u771f\u6b63\u751f\u6548\u3002<\/p>\n<h3>\u516b\u3001\u7d22\u5f15\u8bbe\u8ba1\u7684\u4e00\u4e9b\u5b9e\u8df5\u5efa\u8bae<\/h3>\n<li>\u4f18\u5148\u4f7f\u7528\u81ea\u589e\u4e3b\u952e&#xff0c;\u907f\u514d\u968f\u673a\u4e3b\u952e\u5bfc\u81f4\u9875\u5206\u88c2\u548c\u788e\u7247\u3002<\/li>\n<li>\u63a7\u5236\u7d22\u5f15\u6570\u91cf&#xff0c;\u4e00\u822c\u5355\u8868\u7d22\u5f15\u4e0d\u8d85\u8fc7 5 \u4e2a&#xff0c;\u5199\u591a\u8bfb\u5c11\u7684\u8868\u5c24\u5176\u8981\u514b\u5236\u3002<\/li>\n<li>\u5c3d\u91cf\u4f7f\u7528\u8986\u76d6\u7d22\u5f15&#xff0c;\u51cf\u5c11\u56de\u8868\u5e26\u6765\u7684\u989d\u5916 IO\u3002<\/li>\n<li>\u8054\u5408\u7d22\u5f15\u628a\u533a\u5206\u5ea6\u9ad8\u7684\u5217\u653e\u524d\u9762&#xff0c;\u540c\u65f6\u517c\u987e\u6700\u5de6\u524d\u7f00\u7684\u67e5\u8be2\u4e60\u60ef\u3002<\/li>\n<li>\u907f\u514d\u5728\u7d22\u5f15\u5217\u4e0a\u505a\u8fd0\u7b97&#xff0c;\u628a\u8ba1\u7b97\u8f6c\u79fb\u5230\u5e38\u91cf\u4fa7\u3002<\/li>\n<li>\u5b9a\u671f\u5173\u6ce8\u6162\u67e5\u8be2\u65e5\u5fd7&#xff0c;\u7528\u771f\u5b9e\u6570\u636e\u9a8c\u8bc1\u7d22\u5f15\u6548\u679c&#xff0c;\u800c\u4e0d\u662f\u51ed\u611f\u89c9\u5efa\u7d22\u5f15\u3002<\/li>\n<h3>\u4e5d\u3001\u603b\u7ed3<\/h3>\n<p>\u56de\u5230\u6700\u521d\u7684\u95ee\u9898&#xff1a;MySQL \u7d22\u5f15\u662f\u4ec0\u4e48&#xff1f;\u5b83\u662f\u4e00\u79cd\u4e3a\u4e86\u51cf\u5c11\u78c1\u76d8 IO \u800c\u8bbe\u8ba1\u7684\u6709\u5e8f\u6570\u636e\u7ed3\u6784&#xff1b;\u5e95\u5c42\u600e\u4e48\u5b9e\u73b0&#xff1f;InnoDB \u7528 B&#043; \u6811\u7ec4\u7ec7\u7d22\u5f15&#xff0c;\u975e\u53f6\u5b50\u8282\u70b9\u53ea\u5b58\u952e\u505a\u5bfc\u822a&#xff0c;\u53f6\u5b50\u8282\u70b9\u5b58\u6570\u636e\u5e76\u7528\u53cc\u5411\u94fe\u8868\u4e32\u8054&#xff0c;\u4ece\u800c\u540c\u65f6\u652f\u6301\u9ad8\u6548\u7684\u7b49\u503c\u67e5\u8be2\u548c\u8303\u56f4\u67e5\u8be2\u3002\u805a\u7c07\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u662f\u6574\u884c\u6570\u636e&#xff0c;\u4e8c\u7ea7\u7d22\u5f15\u7684\u53f6\u5b50\u8282\u70b9\u662f\u7d22\u5f15\u5217\u52a0\u4e3b\u952e&#xff0c;\u9700\u8981\u65f6\u901a\u8fc7\u56de\u8868\u8865\u9f50\u6570\u636e\u3002<\/p>\n<p>\u7406\u89e3\u4e86\u8fd9\u5c42\u7ed3\u6784&#xff0c;\u5f88\u591a\u770b\u4f3c\u96f6\u6563\u7684\u4f18\u5316\u89c4\u5219\u2014\u2014\u8986\u76d6\u7d22\u5f15\u3001\u6700\u5de6\u524d\u7f00\u3001\u907f\u514d\u51fd\u6570\u8fd0\u7b97\u3001\u614e\u7528\u968f\u673a\u4e3b\u952e\u2014\u2014\u90fd\u4f1a\u53d8\u5f97\u987a\u7406\u6210\u7ae0&#xff0c;\u56e0\u4e3a\u5b83\u4eec\u672c\u8d28\u4e0a\u90fd\u662f\u5728\u51cf\u5c11\u6811\u7684\u9ad8\u5ea6\u3001\u51cf\u5c11\u56de\u8868\u6b21\u6570\u3001\u51cf\u5c11\u78c1\u76d8 IO\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u53ea\u8981\u8868\u6570\u636e\u91cf\u7a0d\u5fae\u5927\u4e00\u70b9&#xff0c;\u6162\u67e5\u8be2\u5c31\u4f1a\u6210\u4e3a\u7ed5\u4e0d\u5f00\u7684\u95ee\u9898\u3002\u800c\u89e3\u51b3\u6162\u67e5\u8be2\u6700\u76f4\u63a5\u3001\u6700\u6709\u6548\u7684\u624b\u6bb5&#xff0c;\u5f80\u5f80\u5c31\u662f\u52a0\u7d22\u5f15\u3002\u4f46\u5f88\u591a\u540c\u5b66\u5bf9\u7d22\u5f15\u7684\u7406\u89e3\u505c\u7559\u5728\u201c\u52a0\u4e86\u5c31\u5feb\u201d\u7684\u5c42\u9762&#xff0c;\u9762\u8bd5\u65f6\u88ab\u8ffd\u95ee\u201c\u7d22\u5f15\u5e95\u5c42\u662f\u600e\u4e48\u5b9e\u73b0\u7684\u201d\u5c31\u5bb9\u6613\u5361\u58f3\u3002\u672c\u6587\u4ece\u7d22\u5f15\u7684\u672c\u8d28\u51fa\u53d1&#xff0c;\u4e00\u6b65\u6b65\u62c6\u89e3 MySQL \u7d22\u5f15\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784&#xff0c;\u91cd\u70b9\u8bb2\u6e05\u695a B \u6811\u4e3a\u4ec0\u4e48\u80fd\u6210\u4e3a InnoDB \u7684\u9ed8\u8ba4\u9009\u62e9\u3002\u4e00\u3001\u7d22\u5f15\u5230\u5e95\u662f\u4ec0\u4e48\u4ece\u6700\u6734\u7d20\u7684\u89d2\u5ea6\u7406\u89e3&#xff0c;\u7d22\u5f15\u5c31\u662f<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[116,114,100,4581],"topic":[],"class_list":["post-118172","post","type-post","status-publish","format-standard","hentry","category-server","tag-adb","tag-mysql","tag-100","tag-4581"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v20.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/118172.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u53ea\u8981\u8868\u6570\u636e\u91cf\u7a0d\u5fae\u5927\u4e00\u70b9&#xff0c;\u6162\u67e5\u8be2\u5c31\u4f1a\u6210\u4e3a\u7ed5\u4e0d\u5f00\u7684\u95ee\u9898\u3002\u800c\u89e3\u51b3\u6162\u67e5\u8be2\u6700\u76f4\u63a5\u3001\u6700\u6709\u6548\u7684\u624b\u6bb5&#xff0c;\u5f80\u5f80\u5c31\u662f\u52a0\u7d22\u5f15\u3002\u4f46\u5f88\u591a\u540c\u5b66\u5bf9\u7d22\u5f15\u7684\u7406\u89e3\u505c\u7559\u5728\u201c\u52a0\u4e86\u5c31\u5feb\u201d\u7684\u5c42\u9762&#xff0c;\u9762\u8bd5\u65f6\u88ab\u8ffd\u95ee\u201c\u7d22\u5f15\u5e95\u5c42\u662f\u600e\u4e48\u5b9e\u73b0\u7684\u201d\u5c31\u5bb9\u6613\u5361\u58f3\u3002\u672c\u6587\u4ece\u7d22\u5f15\u7684\u672c\u8d28\u51fa\u53d1&#xff0c;\u4e00\u6b65\u6b65\u62c6\u89e3 MySQL \u7d22\u5f15\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784&#xff0c;\u91cd\u70b9\u8bb2\u6e05\u695a B \u6811\u4e3a\u4ec0\u4e48\u80fd\u6210\u4e3a InnoDB \u7684\u9ed8\u8ba4\u9009\u62e9\u3002\u4e00\u3001\u7d22\u5f15\u5230\u5e95\u662f\u4ec0\u4e48\u4ece\u6700\u6734\u7d20\u7684\u89d2\u5ea6\u7406\u89e3&#xff0c;\u7d22\u5f15\u5c31\u662f\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/118172.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-26T06:32:26+00:00\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/118172.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/118172.html\",\"name\":\"\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-10-26T06:32:26+00:00\",\"dateModified\":\"2026-10-26T06:32:26+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/118172.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/118172.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/118172.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/118172.html","og_locale":"zh_CN","og_type":"article","og_title":"\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u5728\u65e5\u5e38\u5f00\u53d1\u4e2d&#xff0c;\u53ea\u8981\u8868\u6570\u636e\u91cf\u7a0d\u5fae\u5927\u4e00\u70b9&#xff0c;\u6162\u67e5\u8be2\u5c31\u4f1a\u6210\u4e3a\u7ed5\u4e0d\u5f00\u7684\u95ee\u9898\u3002\u800c\u89e3\u51b3\u6162\u67e5\u8be2\u6700\u76f4\u63a5\u3001\u6700\u6709\u6548\u7684\u624b\u6bb5&#xff0c;\u5f80\u5f80\u5c31\u662f\u52a0\u7d22\u5f15\u3002\u4f46\u5f88\u591a\u540c\u5b66\u5bf9\u7d22\u5f15\u7684\u7406\u89e3\u505c\u7559\u5728\u201c\u52a0\u4e86\u5c31\u5feb\u201d\u7684\u5c42\u9762&#xff0c;\u9762\u8bd5\u65f6\u88ab\u8ffd\u95ee\u201c\u7d22\u5f15\u5e95\u5c42\u662f\u600e\u4e48\u5b9e\u73b0\u7684\u201d\u5c31\u5bb9\u6613\u5361\u58f3\u3002\u672c\u6587\u4ece\u7d22\u5f15\u7684\u672c\u8d28\u51fa\u53d1&#xff0c;\u4e00\u6b65\u6b65\u62c6\u89e3 MySQL \u7d22\u5f15\u7684\u5e95\u5c42\u6570\u636e\u7ed3\u6784&#xff0c;\u91cd\u70b9\u8bb2\u6e05\u695a B \u6811\u4e3a\u4ec0\u4e48\u80fd\u6210\u4e3a InnoDB \u7684\u9ed8\u8ba4\u9009\u62e9\u3002\u4e00\u3001\u7d22\u5f15\u5230\u5e95\u662f\u4ec0\u4e48\u4ece\u6700\u6734\u7d20\u7684\u89d2\u5ea6\u7406\u89e3&#xff0c;\u7d22\u5f15\u5c31\u662f","og_url":"https:\/\/www.wsisp.com\/helps\/118172.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-10-26T06:32:26+00:00","author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"2 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/118172.html","url":"https:\/\/www.wsisp.com\/helps\/118172.html","name":"\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-10-26T06:32:26+00:00","dateModified":"2026-10-26T06:32:26+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/118172.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/118172.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/118172.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u3010MySQL\u7bc7|\u7b2c\u516b\u7bc7\u3011\u7d22\u5f15\u5e95\u5c42\u5b9e\u73b0"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/118172","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=118172"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/118172\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=118172"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=118172"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=118172"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=118172"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}