{"id":6470,"date":"2024-11-14T12:11:38","date_gmt":"2024-11-14T04:11:38","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6470\/"},"modified":"2024-11-14T12:11:38","modified_gmt":"2024-11-14T04:11:38","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e6%80%8e%e4%b9%88%e5%bb%ba%e7%ab%8b%e7%b4%a2%e5%bc%95","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6470\/","title":{"rendered":"mysql\u6570\u636e\u5e93\u600e\u4e48\u5efa\u7acb\u7d22\u5f15"},"content":{"rendered":"<blockquote><p>\n  mysql \u4e2d\u521b\u5efa\u7d22\u5f15\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a\u786e\u5b9a\u9700\u8981\u7d22\u5f15\u7684\u5217\u3002\u9009\u62e9\u7d22\u5f15\u7c7b\u578b\uff1a\u666e\u901a\u7d22\u5f15\u3001\u552f\u4e00\u7d22\u5f15\u3001\u4e3b\u952e\u6216\u5916\u952e\u3002\u4f7f\u7528 create index \u8bed\u6cd5\u521b\u5efa\u7d22\u5f15\u3002\u9009\u62e9\u5408\u9002\u7684\u7d22\u5f15\u9009\u62e9\u6027\u3002\u901a\u8fc7\u624b\u52a8\u6216\u81ea\u52a8\u7ef4\u62a4\u4fdd\u6301\u7d22\u5f15\u6700\u65b0\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202408\/05\/2024080508101557564.jpg\" class=\"aligncenter\" title=\"mysql\u6570\u636e\u5e93\u600e\u4e48\u5efa\u7acb\u7d22\u5f15\u63d2\u56fe\" alt=\"mysql\u6570\u636e\u5e93\u600e\u4e48\u5efa\u7acb\u7d22\u5f15\u63d2\u56fe\" \/><\/p>\n<p><strong>MySQL \u6570\u636e\u5e93\u4e2d\u5982\u4f55\u521b\u5efa\u7d22\u5f15<\/strong><\/p>\n<p>\u7d22\u5f15\u662f MySQL \u6570\u636e\u5e93\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u6570\u636e\u5e93\u67e5\u8be2\u7684\u6027\u80fd\u3002\u901a\u8fc7\u5728\u5217\u4e0a\u521b\u5efa\u7d22\u5f15\uff0c\u6570\u636e\u5e93\u53ef\u4ee5\u5728\u67e5\u8be2\u65f6\u5feb\u901f\u627e\u5230\u6240\u9700\u6570\u636e\uff0c\u800c\u65e0\u9700\u626b\u63cf\u6574\u4e2a\u8868\u3002<\/p>\n<p><strong>\u521b\u5efa\u7d22\u5f15\u6b65\u9aa4\uff1a<\/strong><\/p>\n<p><strong>1. \u786e\u5b9a\u9700\u8981\u7d22\u5f15\u7684\u5217<\/strong><\/p>\n<p>\u9009\u62e9\u90a3\u4e9b\u5728\u67e5\u8be2\u4e2d\u7ecf\u5e38\u4f7f\u7528\u6216\u5728\u8054\u63a5\u64cd\u4f5c\u4e2d\u7528\u4f5c\u8fde\u63a5\u5b57\u6bb5\u7684\u5217\u3002<\/p>\n<p><strong>2. \u9009\u62e9\u7d22\u5f15\u7c7b\u578b<\/strong><\/p>\n<p>MySQL \u63d0\u4f9b\u4e86\u591a\u79cd\u7d22\u5f15\u7c7b\u578b\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li> <strong>\u666e\u901a\u7d22\u5f15\uff1a<\/strong>\u6700\u57fa\u672c\u7684\u7d22\u5f15\uff0c\u7528\u4e8e\u52a0\u5feb\u6309\u5217\u503c\u67e5\u627e\u6570\u636e\u3002<\/li>\n<li> <strong>\u552f\u4e00\u7d22\u5f15\uff1a<\/strong>\u4e0e\u666e\u901a\u7d22\u5f15\u7c7b\u4f3c\uff0c\u4f46\u4fdd\u8bc1\u5217\u4e2d\u7684\u503c\u552f\u4e00\u3002<\/li>\n<li> <strong>\u4e3b\u952e\uff1a<\/strong>\u7279\u6b8a\u7684\u552f\u4e00\u7d22\u5f15\uff0c\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u3002<\/li>\n<li> <strong>\u5916\u952e\uff1a<\/strong>\u7528\u4e8e\u5728\u4e0d\u540c\u8868\u4e4b\u95f4\u5efa\u7acb\u5173\u7cfb\u3002<\/li>\n<\/ul>\n<p><strong>3. \u521b\u5efa\u7d22\u5f15<\/strong><\/p>\n<p>\u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u521b\u5efa\u7d22\u5f15\uff1a<\/p>\n<pre>CREATE INDEX [\u7d22\u5f15\u540d\u79f0] ON [\u8868\u540d] ([\u5217\u540d]);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p>\u4f8b\u5982\uff0c\u4e3a users \u8868\u4e2d\u7684 name \u5217\u521b\u5efa\u4e00\u4e2a\u666e\u901a\u7d22\u5f15\uff1a<\/p>\n<pre>CREATE INDEX idx_name ON users (name);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>4. \u9009\u62e9\u5408\u9002\u7684\u9009\u62e9\u6027<\/strong><\/p>\n<p>\u9009\u62e9\u6027\u662f\u6307\u7d22\u5f15\u4e2d\u552f\u4e00\u503c\u7684\u767e\u5206\u6bd4\u3002\u9ad8\u9009\u62e9\u6027\u7d22\u5f15\u610f\u5473\u7740\u5927\u591a\u6570\u67e5\u8be2\u90fd\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n<p><strong>5. \u7ef4\u62a4\u7d22\u5f15<\/strong><\/p>\n<p>\u5f53\u6570\u636e\u53d1\u751f\u66f4\u6539\u65f6\uff0c\u7d22\u5f15\u9700\u8981\u8fdb\u884c\u7ef4\u62a4\u4ee5\u4fdd\u6301\u6700\u65b0\u3002MySQL \u81ea\u52a8\u5904\u7406\u7d22\u5f15\u7ef4\u62a4\uff0c\u4f46\u5bf9\u4e8e\u9ad8\u5e76\u53d1\u73af\u5883\uff0c\u53ef\u80fd\u9700\u8981\u8003\u8651\u624b\u52a8\u7ef4\u62a4\u7d22\u5f15\u3002<\/p>\n<p><strong>\u4f18\u70b9\uff1a<\/strong><\/p>\n<ul>\n<li>\u63d0\u9ad8\u67e5\u8be2\u901f\u5ea6<\/li>\n<li>\u964d\u4f4e CPU \u548c\u5185\u5b58\u4f7f\u7528\u7387<\/li>\n<li>\u6539\u5584\u6570\u636e\u5b8c\u6574\u6027<\/li>\n<li>\u52a0\u901f\u8054\u63a5\u64cd\u4f5c<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u600e\u4e48\u5efa\u7acb\u7d22\u5f15\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u7f51\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"<p>mysql \u4e2d\u521b\u5efa\u7d22\u5f15\u7684\u6b65\u9aa4\u5982\u4e0b\uff1a\u786e\u5b9a\u9700\u8981\u7d22\u5f15\u7684\u5217\u3002\u9009\u62e9\u7d22\u5f15\u7c7b\u578b\uff1a\u666e\u901a\u7d22\u5f15\u3001\u552f\u4e00\u7d22\u5f15\u3001\u4e3b\u952e\u6216\u5916\u952e\u3002\u4f7f\u7528 create index \u8bed\u6cd5\u521b\u5efa\u7d22\u5f15\u3002\u9009\u62e9\u5408\u9002\u7684\u7d22\u5f15\u9009\u62e9\u6027\u3002\u901a\u8fc7\u624b\u52a8\u6216\u81ea\u52a8\u7ef4\u62a4\u4fdd\u6301\u7d22\u5f15\u6700\u65b0\u3002 MySQL \u6570\u636e\u5e93\u4e2d\u5982\u4f55\u521b\u5efa\u7d22\u5f15 \u7d22\u5f15\u662f MySQL \u6570\u636e\u5e93\u4e2d\u4e00\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\uff0c\u5b83\u53ef\u4ee5\u663e\u8457\u63d0\u9ad8\u6570\u636e\u5e93\u67e5\u8be2\u7684\u6027\u80fd\u3002\u901a\u8fc7\u5728\u5217\u4e0a\u521b\u5efa\u7d22\u5f15\uff0c\u6570\u636e\u5e93\u53ef\u4ee5\u5728\u67e5\u8be2\u65f6\u5feb\u901f\u627e\u5230\u6240\u9700\u6570\u636e\uff0c\u800c\u65e0\u9700\u626b\u63cf\u6574\u4e2a\u8868\u3002 \u521b\u5efa\u7d22\u5f15\u6b65\u9aa4\uff1a 1. \u786e\u5b9a\u9700\u8981\u7d22\u5f15\u7684\u5217 \u9009\u62e9\u90a3\u4e9b\u5728\u67e5\u8be2\u4e2d\u7ecf\u5e38\u4f7f\u7528\u6216\u5728\u8054\u63a5\u64cd\u4f5c\u4e2d\u7528\u4f5c\u8fde\u63a5\u5b57\u6bb5\u7684\u5217\u3002 2. \u9009\u62e9\u7d22\u5f15\u7c7b\u578b MySQL \u63d0\u4f9b\u4e86\u591a\u79cd\u7d22\u5f15\u7c7b\u578b\uff0c\u5305\u62ec\uff1a \u666e\u901a\u7d22\u5f15\uff1a\u6700\u57fa\u672c\u7684\u7d22\u5f15\uff0c\u7528\u4e8e\u52a0\u5feb\u6309\u5217\u503c\u67e5\u627e\u6570\u636e\u3002 \u552f\u4e00\u7d22\u5f15\uff1a\u4e0e\u666e\u901a\u7d22\u5f15\u7c7b\u4f3c\uff0c\u4f46\u4fdd\u8bc1\u5217\u4e2d\u7684\u503c\u552f\u4e00\u3002 \u4e3b\u952e\uff1a\u7279\u6b8a\u7684\u552f\u4e00\u7d22\u5f15\uff0c\u7528\u4e8e\u552f\u4e00\u6807\u8bc6\u8868\u4e2d\u7684\u6bcf\u4e00\u884c\u3002 \u5916\u952e\uff1a\u7528\u4e8e\u5728\u4e0d\u540c\u8868\u4e4b\u95f4\u5efa\u7acb\u5173\u7cfb\u3002 3. \u521b\u5efa\u7d22\u5f15 \u4f7f\u7528\u4ee5\u4e0b\u8bed\u6cd5\u521b\u5efa\u7d22\u5f15\uff1a CREATE INDEX [\u7d22\u5f15\u540d\u79f0] ON [\u8868\u540d] ([\u5217\u540d]); \u767b\u5f55\u540e\u590d\u5236 \u4f8b\u5982\uff0c\u4e3a users \u8868\u4e2d\u7684 name \u5217\u521b\u5efa\u4e00\u4e2a\u666e\u901a\u7d22\u5f15\uff1a CREATE INDEX idx_name ON users (name); \u767b\u5f55\u540e\u590d\u5236 4. \u9009\u62e9\u5408\u9002\u7684\u9009\u62e9\u6027 \u9009\u62e9\u6027\u662f\u6307\u7d22\u5f15\u4e2d\u552f\u4e00\u503c\u7684\u767e\u5206\u6bd4\u3002\u9ad8\u9009\u62e9\u6027\u7d22\u5f15\u610f\u5473\u7740\u5927\u591a\u6570\u67e5\u8be2\u90fd\u53ef\u4ee5\u4f7f\u7528\u7d22\u5f15\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002 5. \u7ef4\u62a4\u7d22\u5f15 \u5f53\u6570\u636e\u53d1\u751f\u66f4\u6539\u65f6\uff0c\u7d22\u5f15\u9700\u8981\u8fdb\u884c\u7ef4\u62a4\u4ee5\u4fdd\u6301\u6700\u65b0\u3002MySQL \u81ea\u52a8\u5904\u7406\u7d22\u5f15\u7ef4\u62a4\uff0c\u4f46\u5bf9\u4e8e\u9ad8\u5e76\u53d1\u73af\u5883\uff0c\u53ef\u80fd\u9700\u8981\u8003\u8651\u624b\u52a8\u7ef4\u62a4\u7d22\u5f15\u3002 \u4f18\u70b9\uff1a \u63d0\u9ad8\u67e5\u8be2\u901f\u5ea6 \u964d\u4f4e CPU [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-6470","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=6470"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6470\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}