{"id":6311,"date":"2024-11-14T14:25:24","date_gmt":"2024-11-14T06:25:24","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6311\/"},"modified":"2024-11-14T14:25:24","modified_gmt":"2024-11-14T06:25:24","slug":"mysql%e7%b4%a2%e5%bc%95%e5%88%9b%e5%bb%ba%e8%af%ad%e5%8f%a5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6311\/","title":{"rendered":"mysql\u7d22\u5f15\u521b\u5efa\u8bed\u53e5"},"content":{"rendered":"

\n mysql \u7d22\u5f15\u521b\u5efa\u8bed\u53e5\u4e3a\uff1acreate index [index_name] on [table_name] ([column_list])\u3002mysql \u652f\u6301 b-tree\u3001\u54c8\u5e0c\u548c\u5168\u6587\u7d22\u5f15\u3002\u9009\u62e9\u7d22\u5f15\u7c7b\u578b\u65f6\uff0c\u5efa\u8bae\uff1a\u8303\u56f4\u67e5\u8be2\u6216\u6392\u5e8f\u67e5\u8be2\u4f7f\u7528 b-tree \u7d22\u5f15\uff1b\u7b49\u503c\u67e5\u8be2\u6216\u6570\u636e\u8f83\u5c11\u65f6\u4f7f\u7528\u54c8\u5e0c\u7d22\u5f15\uff1b\u641c\u7d22\u6587\u672c\u6570\u636e\u65f6\u4f7f\u7528\u5168\u6587\u7d22\u5f15\u3002\u6ce8\u610f\uff1a\u8fc7\u591a\u7684\u7d22\u5f15\u4f1a\u5f71\u54cd\u5199\u5165\u6027\u80fd\uff0c\u56e0\u6b64\u5e94\u6839\u636e\u9700\u8981\u521b\u5efa\u7d22\u5f15\u5e76\u5b9a\u671f\u7ef4\u62a4\u4ee5\u786e\u4fdd\u7d22\u5f15\u662f\u6700\u65b0\u7684\u3002\n<\/p><\/blockquote>\n

\"mysql\u7d22\u5f15\u521b\u5efa\u8bed\u53e5\u63d2\u56fe\"<\/p>\n

MySQL \u7d22\u5f15\u521b\u5efa\u8bed\u53e5<\/h2>\n

MySQL \u4e2d\u7684\u7d22\u5f15\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u5feb\u901f\u67e5\u627e\u548c\u68c0\u7d22\u6570\u636e\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002\u521b\u5efa\u7d22\u5f15\u7684\u8bed\u53e5\u5982\u4e0b\uff1a<\/p>\n

CREATE INDEX [index_name] ON [table_name] ([column_list]);<\/pre>\n
 \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
\u53c2\u6570\u8bf4\u660e\uff1a<\/h3>\n
    \n
  •  index_name\uff1a<\/strong>\u7d22\u5f15\u540d\u79f0\uff0c\u53ef\u9009\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\uff0cMySQL \u4f1a\u81ea\u52a8\u751f\u6210\u3002<\/li>\n
  •  table_name\uff1a<\/strong>\u9700\u8981\u521b\u5efa\u7d22\u5f15\u7684\u8868\u540d\u3002<\/li>\n
  •  column_list\uff1a<\/strong>\u9700\u8981\u521b\u5efa\u7d22\u5f15\u7684\u5217\u5217\u8868\u3002<\/li>\n<\/ul>\n
    \u793a\u4f8b\uff1a<\/h3>\n
    \u5728 orders \u8868\u4e2d\u521b\u5efa\u7d22\u5f15 order_date_idx\uff0c\u57fa\u4e8e order_date \u5b57\u6bb5\uff1a<\/p>\n
    CREATE INDEX order_date_idx ON orders (order_date);<\/pre>\n
     \u767b\u5f55\u540e\u590d\u5236 <\/p>\n
    \u7c7b\u578b\uff1a<\/h3>\n
    MySQL \u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u5305\u62ec\uff1a<\/p>\n
      \n
    •  B-Tree \u7d22\u5f15\uff1a<\/strong>\u4e00\u79cd\u5e73\u8861\u6811\u7ed3\u6784\uff0c\u9002\u5408\u4e8e\u8303\u56f4\u67e5\u8be2\u548c\u6392\u5e8f\u67e5\u8be2\u3002<\/li>\n
    •  \u54c8\u5e0c\u7d22\u5f15\uff1a<\/strong>\u4e00\u79cd\u57fa\u4e8e\u54c8\u5e0c\u8868\u7684\u7ed3\u6784\uff0c\u9002\u5408\u4e8e\u7b49\u503c\u67e5\u8be2\u3002<\/li>\n
    •  \u5168\u6587\u7d22\u5f15\uff1a<\/strong>\u4e00\u79cd\u7528\u4e8e\u641c\u7d22\u6587\u672c\u6570\u636e\u7684\u7ed3\u6784\u3002<\/li>\n<\/ul>\n
      \u9009\u62e9\u7d22\u5f15\u7c7b\u578b\uff1a<\/h3>\n
      \u9009\u62e9\u5408\u9002\u7684\u7d22\u5f15\u7c7b\u578b\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u4f1a\u5f71\u54cd\u7d22\u5f15\u7684\u6027\u80fd\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5bf9\u4e8e\u4ee5\u4e0b\u60c5\u51b5\uff0c\u5efa\u8bae\u4f7f\u7528 B-Tree \u7d22\u5f15\uff1a<\/p>\n
        \n
      • \u8303\u56f4\u67e5\u8be2<\/li>\n
      • \u6392\u5e8f\u67e5\u8be2<\/li>\n
      • \u6570\u636e\u8f83\u591a\u65f6<\/li>\n<\/ul>\n
        \u5bf9\u4e8e\u4ee5\u4e0b\u60c5\u51b5\uff0c\u5efa\u8bae\u4f7f\u7528\u54c8\u5e0c\u7d22\u5f15\uff1a<\/p>\n
          \n
        • \u7b49\u503c\u67e5\u8be2<\/li>\n
        • \u6570\u636e\u8f83\u5c11\u65f6<\/li>\n<\/ul>\n
          \u5bf9\u4e8e\u4ee5\u4e0b\u60c5\u51b5\uff0c\u5efa\u8bae\u4f7f\u7528\u5168\u6587\u7d22\u5f15\uff1a<\/p>\n
            \n
          • \u641c\u7d22\u6587\u672c\u6570\u636e<\/li>\n<\/ul>\n
            \u6ce8\u610f\uff1a<\/h3>\n
              \n
            • \u7d22\u5f15\u4f1a\u5f71\u54cd\u6570\u636e\u7684\u5199\u5165\u6027\u80fd\uff0c\u6240\u4ee5\u53ea\u5e94\u5728\u9700\u8981\u65f6\u521b\u5efa\u7d22\u5f15\u3002<\/li>\n
            • \u540c\u4e00\u5f20\u8868\u4e0a\u53ef\u4ee5\u521b\u5efa\u591a\u4e2a\u7d22\u5f15\uff0c\u4f46\u8fc7\u591a\u7d22\u5f15\u4f1a\u964d\u4f4e\u5199\u5165\u6027\u80fd\u3002<\/li>\n
            • \u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\uff0c\u786e\u4fdd\u5176\u662f\u6700\u65b0\u7684\uff0c\u53ef\u4ee5\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/li>\n<\/ul>\n
              \u4ee5\u4e0a\u5c31\u662f\u7d22\u5f15\u521b\u5efa\u8bed\u53e5\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":"
              mysql \u7d22\u5f15\u521b\u5efa\u8bed\u53e5\u4e3a\uff1acreate index [index_name] on [table_name] ([column_list])\u3002mysql \u652f\u6301 b-tree\u3001\u54c8\u5e0c\u548c\u5168\u6587\u7d22\u5f15\u3002\u9009\u62e9\u7d22\u5f15\u7c7b\u578b\u65f6\uff0c\u5efa\u8bae\uff1a\u8303\u56f4\u67e5\u8be2\u6216\u6392\u5e8f\u67e5\u8be2\u4f7f\u7528 b-tree \u7d22\u5f15\uff1b\u7b49\u503c\u67e5\u8be2\u6216\u6570\u636e\u8f83\u5c11\u65f6\u4f7f\u7528\u54c8\u5e0c\u7d22\u5f15\uff1b\u641c\u7d22\u6587\u672c\u6570\u636e\u65f6\u4f7f\u7528\u5168\u6587\u7d22\u5f15\u3002\u6ce8\u610f\uff1a\u8fc7\u591a\u7684\u7d22\u5f15\u4f1a\u5f71\u54cd\u5199\u5165\u6027\u80fd\uff0c\u56e0\u6b64\u5e94\u6839\u636e\u9700\u8981\u521b\u5efa\u7d22\u5f15\u5e76\u5b9a\u671f\u7ef4\u62a4\u4ee5\u786e\u4fdd\u7d22\u5f15\u662f\u6700\u65b0\u7684\u3002 MySQL \u7d22\u5f15\u521b\u5efa\u8bed\u53e5 MySQL \u4e2d\u7684\u7d22\u5f15\u662f\u4e00\u79cd\u6570\u636e\u7ed3\u6784\uff0c\u53ef\u4ee5\u5feb\u901f\u67e5\u627e\u548c\u68c0\u7d22\u6570\u636e\uff0c\u4ece\u800c\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002\u521b\u5efa\u7d22\u5f15\u7684\u8bed\u53e5\u5982\u4e0b\uff1a CREATE INDEX [index_name] ON [table_name] ([column_list]); \u767b\u5f55\u540e\u590d\u5236 \u53c2\u6570\u8bf4\u660e\uff1a index_name\uff1a\u7d22\u5f15\u540d\u79f0\uff0c\u53ef\u9009\uff0c\u5982\u679c\u4e0d\u6307\u5b9a\uff0cMySQL \u4f1a\u81ea\u52a8\u751f\u6210\u3002 table_name\uff1a\u9700\u8981\u521b\u5efa\u7d22\u5f15\u7684\u8868\u540d\u3002 column_list\uff1a\u9700\u8981\u521b\u5efa\u7d22\u5f15\u7684\u5217\u5217\u8868\u3002 \u793a\u4f8b\uff1a \u5728 orders \u8868\u4e2d\u521b\u5efa\u7d22\u5f15 order_date_idx\uff0c\u57fa\u4e8e order_date \u5b57\u6bb5\uff1a CREATE INDEX order_date_idx ON orders (order_date); \u767b\u5f55\u540e\u590d\u5236 \u7c7b\u578b\uff1a MySQL \u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u5305\u62ec\uff1a B-Tree \u7d22\u5f15\uff1a\u4e00\u79cd\u5e73\u8861\u6811\u7ed3\u6784\uff0c\u9002\u5408\u4e8e\u8303\u56f4\u67e5\u8be2\u548c\u6392\u5e8f\u67e5\u8be2\u3002 \u54c8\u5e0c\u7d22\u5f15\uff1a\u4e00\u79cd\u57fa\u4e8e\u54c8\u5e0c\u8868\u7684\u7ed3\u6784\uff0c\u9002\u5408\u4e8e\u7b49\u503c\u67e5\u8be2\u3002 \u5168\u6587\u7d22\u5f15\uff1a\u4e00\u79cd\u7528\u4e8e\u641c\u7d22\u6587\u672c\u6570\u636e\u7684\u7ed3\u6784\u3002 \u9009\u62e9\u7d22\u5f15\u7c7b\u578b\uff1a \u9009\u62e9\u5408\u9002\u7684\u7d22\u5f15\u7c7b\u578b\u975e\u5e38\u91cd\u8981\uff0c\u56e0\u4e3a\u5b83\u4f1a\u5f71\u54cd\u7d22\u5f15\u7684\u6027\u80fd\u3002\u4e00\u822c\u6765\u8bf4\uff0c\u5bf9\u4e8e\u4ee5\u4e0b\u60c5\u51b5\uff0c\u5efa\u8bae\u4f7f\u7528 B-Tree \u7d22\u5f15\uff1a \u8303\u56f4\u67e5\u8be2 \u6392\u5e8f\u67e5\u8be2 \u6570\u636e\u8f83\u591a\u65f6 […]<\/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-6311","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6311","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=6311"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6311\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6311"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6311"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}