{"id":158759,"date":"2024-11-03T04:34:42","date_gmt":"2024-11-02T20:34:42","guid":{"rendered":"https:\/\/server.hk\/cnblog\/158759\/"},"modified":"2024-11-03T04:34:43","modified_gmt":"2024-11-02T20:34:43","slug":"%e9%97%9c%e4%bf%82%e5%9e%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96%e7%b8%bd%e7%b5%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/158759\/","title":{"rendered":"\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u7e3d\u7d50"},"content":{"rendered":"<h1 id=\"%e9%97%9c%e4%bf%82%e5%9e%8b%e6%95%b8%e6%93%9a%e5%ba%ab%e6%80%a7%e8%83%bd%e5%84%aa%e5%8c%96%e7%b8%bd%e7%b5%90-GvKRdDCFOX\">\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u6027\u80fd\u512a\u5316\u7e3d\u7d50<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\uff0c\u95dc\u4fc2\u578b\u6578\u64da\u5eab\uff08RDBMS\uff09\u662f\u8a31\u591a\u61c9\u7528\u7a0b\u5e8f\u7684\u6838\u5fc3\u3002\u96a8\u8457\u6578\u64da\u91cf\u7684\u589e\u9577\u548c\u7528\u6236\u9700\u6c42\u7684\u63d0\u9ad8\uff0c\u6578\u64da\u5eab\u6027\u80fd\u7684\u512a\u5316\u8b8a\u5f97\u5c24\u70ba\u91cd\u8981\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e00\u4e9b\u95dc\u9375\u7684\u6027\u80fd\u512a\u5316\u7b56\u7565\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u63d0\u5347\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7684\u6548\u7387\u3002<\/p>\n<h2 id=\"1-%e7%b4%a2%e5%bc%95%e7%9a%84%e4%bd%bf%e7%94%a8-GvKRdDCFOX\">1. 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id=\"2-%e6%9f%a5%e8%a9%a2%e5%84%aa%e5%8c%96-GvKRdDCFOX\">2. \u67e5\u8a62\u512a\u5316<\/h2>\n<p>\u67e5\u8a62\u7684\u5beb\u6cd5\u5c0d\u6027\u80fd\u5f71\u97ff\u5de8\u5927\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u67e5\u8a62\u512a\u5316\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u907f\u514d\u4f7f\u7528SELECT *\uff1a<\/strong>\u660e\u78ba\u6307\u5b9a\u9700\u8981\u7684\u5217\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u50b3\u8f38\u3002<\/li>\n<li><strong>\u4f7f\u7528JOIN\u800c\u975e\u5b50\u67e5\u8a62\uff1a<\/strong>\u5728\u8a31\u591a\u60c5\u6cc1\u4e0b\uff0c\u4f7f\u7528JOIN\u53ef\u4ee5\u6bd4\u5b50\u67e5\u8a62\u66f4\u9ad8\u6548\u3002<\/li>\n<li><strong>\u5229\u7528EXPLAIN\u5206\u6790\u67e5\u8a62\uff1a<\/strong>\u4f7f\u7528EXPLAIN\u8a9e\u53e5\u4f86\u5206\u6790\u67e5\u8a62\u8a08\u5283\uff0c\u627e\u51fa\u6027\u80fd\u74f6\u9838\u3002<\/li>\n<\/ul>\n<h2 id=\"3-%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88-GvKRdDCFOX\">3. 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id=\"4-%e7%a1%ac%e9%ab%94%e8%b3%87%e6%ba%90%e7%9a%84%e9%85%8d%e7%bd%ae-GvKRdDCFOX\">4. \u786c\u9ad4\u8cc7\u6e90\u7684\u914d\u7f6e<\/h2>\n<p>\u6578\u64da\u5eab\u7684\u6027\u80fd\u4e5f\u53d7\u5230\u786c\u9ad4\u8cc7\u6e90\u7684\u5f71\u97ff\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u786c\u9ad4\u914d\u7f6e\u7684\u5efa\u8b70\uff1a<\/p>\n<ul>\n<li><strong>\u589e\u52a0\u5167\u5b58\uff1a<\/strong>\u5167\u5b58\u662f\u6578\u64da\u5eab\u6027\u80fd\u7684\u95dc\u9375\u56e0\u7d20\u4e4b\u4e00\uff0c\u589e\u52a0\u5167\u5b58\u53ef\u4ee5\u63d0\u9ad8\u7de9\u5b58\u547d\u4e2d\u7387\uff0c\u5f9e\u800c\u52a0\u5feb\u67e5\u8a62\u901f\u5ea6\u3002<\/li>\n<li><strong>\u4f7f\u7528SSD\uff1a<\/strong>\u56fa\u614b\u786c\u789f\uff08SSD\uff09\u76f8\u8f03\u65bc\u50b3\u7d71\u786c\u789f\uff08HDD\uff09\u5177\u6709\u66f4\u5feb\u7684\u8b80\u5beb\u901f\u5ea6\uff0c\u80fd\u986f\u8457\u63d0\u9ad8\u6578\u64da\u5eab\u6027\u80fd\u3002<\/li>\n<\/ul>\n<h2 id=\"5-%e5%ae%9a%e6%9c%9f%e7%b6%ad%e8%ad%b7-GvKRdDCFOX\">5. 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