{"id":6475,"date":"2024-11-14T08:27:13","date_gmt":"2024-11-14T00:27:13","guid":{"rendered":"https:\/\/fwq.ai\/blog\/6475\/"},"modified":"2024-11-14T08:27:13","modified_gmt":"2024-11-14T00:27:13","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e7%b4%a2%e5%bc%95%e6%80%8e%e4%b9%88%e7%94%a8","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/6475\/","title":{"rendered":"mysql\u6570\u636e\u5e93\u7d22\u5f15\u600e\u4e48\u7528"},"content":{"rendered":"<blockquote><p>\n  mysql\u6570\u636e\u5e93\u7d22\u5f15\u4f18\u5316\u53ef\u6709\u6548\u63d0\u5347\u67e5\u8be2\u6027\u80fd\u3002\u7d22\u5f15\u901a\u8fc7\u6309\u7279\u5b9a\u5217\u6392\u5e8f\u6570\u636e\uff0c\u5feb\u901f\u5b9a\u4f4d\u6ee1\u8db3\u67e5\u8be2\u6761\u4ef6\u7684\u6570\u636e\u5757\uff0c\u907f\u514d\u5168\u8868\u626b\u63cf\u3002mysql\u652f\u6301\u591a\u79cd\u7d22\u5f15\u7c7b\u578b\uff0c\u5305\u62ecb\u6811\u7d22\u5f15\u3001\u54c8\u5e0c\u7d22\u5f15\u3001\u5168\u6587\u672c\u7d22\u5f15\u548c\u7a7a\u95f4\u7d22\u5f15\u3002\u521b\u5efa\u7d22\u5f15\u9700\u4f7f\u7528create index\u8bed\u53e5\uff0c\u5e76\u9009\u62e9\u7ecf\u5e38\u7528\u4e8e\u641c\u7d22\u6216\u6392\u5e8f\u7684\u5217\u3002\u4f18\u5316\u7d22\u5f15\u4f7f\u7528\u5305\u62ec\uff1a\u53ea\u4e3a\u5fc5\u8981\u5217\u521b\u5efa\u7d22\u5f15\u3001\u4f7f\u7528\u8986\u76d6\u7d22\u5f15\u3001\u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202408\/05\/2024080508160447549.jpg\" class=\"aligncenter\" title=\"mysql\u6570\u636e\u5e93\u7d22\u5f15\u600e\u4e48\u7528\u63d2\u56fe\" alt=\"mysql\u6570\u636e\u5e93\u7d22\u5f15\u600e\u4e48\u7528\u63d2\u56fe\" \/><\/p>\n<p><strong>MySQL \u6570\u636e\u5e93\u7d22\u5f15\u7684\u6709\u6548\u4f7f\u7528<\/strong><\/p>\n<p>\u7d22\u5f15\u662f MySQL \u6570\u636e\u5e93\u4e2d\u7684\u8868\u683c\u7ed3\u6784\uff0c\u5b83\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u548c\u68c0\u7d22\u6570\u636e\uff0c\u4ece\u800c\u663e\u8457\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002<\/p>\n<p><strong>\u7d22\u5f15\u7684\u5de5\u4f5c\u539f\u7406<\/strong><\/p>\n<p>\u7d22\u5f15\u672c\u8d28\u4e0a\u662f\u6309\u7279\u5b9a\u5217\u6392\u5e8f\u7684\u6570\u636e\u5e93\u8868\u7684\u526f\u672c\u3002\u5b83\u5c06\u8868\u4e2d\u7684\u6570\u636e\u5212\u5206\u4e3a\u903b\u8f91\u5757\uff0c\u5e76\u4e3a\u6bcf\u4e2a\u5757\u5206\u914d\u4e00\u4e2a\u6307\u5411\u8868\u4e2d\u5b9e\u9645\u6570\u636e\u884c\u7684\u6307\u9488\u3002\u5f53\u6267\u884c\u67e5\u8be2\u65f6\uff0cMySQL \u4f7f\u7528\u7d22\u5f15\u6765\u5feb\u901f\u5b9a\u4f4d\u6ee1\u8db3\u67e5\u8be2\u6761\u4ef6\u7684\u6570\u636e\u5757\uff0c\u4ece\u800c\u907f\u514d\u626b\u63cf\u6574\u4e2a\u8868\u3002<\/p>\n<p><strong>\u7d22\u5f15\u7684\u7c7b\u578b<\/strong><\/p>\n<p>MySQL \u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u6bcf\u79cd\u7d22\u5f15\u9488\u5bf9\u4e0d\u540c\u7684\u67e5\u8be2\u6a21\u5f0f\u8fdb\u884c\u4e86\u4f18\u5316\uff1a<\/p>\n<ul>\n<li> <strong>B \u6811\u7d22\u5f15\uff1a<\/strong>\u6700\u5e38\u89c1\u4e14\u7528\u9014\u6700\u5e7f\u6cdb\u7684\u7d22\u5f15\u7c7b\u578b\uff0c\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u5355\u4e2a\u6216\u8303\u56f4\u503c\u3002<\/li>\n<li> <strong>\u54c8\u5e0c\u7d22\u5f15\uff1a<\/strong>\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u57fa\u4e8e\u76f8\u7b49\u6027\u7684\u503c\u3002<\/li>\n<li> <strong>\u5168\u6587\u672c\u7d22\u5f15\uff1a<\/strong>\u7528\u4e8e\u5728\u6587\u672c\u5b57\u6bb5\u4e2d\u641c\u7d22\u7279\u5b9a\u5355\u8bcd\u6216\u77ed\u8bed\u3002<\/li>\n<li> <strong>\u7a7a\u95f4\u7d22\u5f15\uff1a<\/strong>\u7528\u4e8e\u57fa\u4e8e\uff08\u5982\u7ecf\u5ea6\u548c\u7eac\u5ea6\uff09\u67e5\u627e\u6570\u636e\u3002<\/li>\n<\/ul>\n<p><strong>\u521b\u5efa\u7d22\u5f15<\/strong><\/p>\n<p>\u53ef\u4ee5\u4f7f\u7528 CREATE INDEX \u8bed\u53e5\u5728 MySQL \u8868\u683c\u4e2d\u521b\u5efa\u7d22\u5f15\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>CREATE INDEX index_name ON table_name (column_name);<\/pre>\n<p> \u767b\u5f55\u540e\u590d\u5236 <\/p>\n<p><strong>\u4f18\u5316\u7d22\u5f15\u4f7f\u7528<\/strong><\/p>\n<p>\u4ee5\u4e0b\u51c6\u5219\u53ef\u5e2e\u52a9\u4f18\u5316\u7d22\u5f15\u4f7f\u7528\uff1a<\/p>\n<ul>\n<li> <strong>\u6b63\u786e\u9009\u62e9\u8981\u7d22\u5f15\u7684\u5217\uff1a<\/strong>\u8003\u8651\u54ea\u4e9b\u5217\u5728\u67e5\u8be2\u4e2d\u7ecf\u5e38\u7528\u4e8e\u641c\u7d22\u6216\u6392\u5e8f\u3002<\/li>\n<li> <strong>\u53ea\u4e3a\u5fc5\u8981\u7684\u5217\u521b\u5efa\u7d22\u5f15\uff1a<\/strong>\u8fc7\u591a\u7d22\u5f15\u4f1a\u964d\u4f4e\u6570\u636e\u63d2\u5165\u548c\u66f4\u65b0\u7684\u6027\u80fd\u3002<\/li>\n<li> <strong>\u4f7f\u7528\u8986\u76d6\u7d22\u5f15\uff1a<\/strong>\u521b\u5efa\u5305\u542b\u67e5\u8be2\u4e2d\u6240\u9700\u6240\u6709\u5217\u7684\u7d22\u5f15\uff0c\u4ee5\u907f\u514d\u8bbf\u95ee\u5b9e\u9645\u6570\u636e\u8868\u3002<\/li>\n<li> <strong>\u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\uff1a<\/strong>\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u968f\u7740\u6570\u636e\u7684\u63d2\u5165\u548c\u5220\u9664\uff0c\u7d22\u5f15\u53ef\u80fd\u4f1a\u53d8\u5f97\u788e\u7247\u5316\uff0c\u5b9a\u671f\u91cd\u5efa\u6216\u4f18\u5316\u7d22\u5f15\u4ee5\u4fdd\u6301\u5176\u6548\u7387\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u7d22\u5f15\u600e\u4e48\u7528\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\u6570\u636e\u5e93\u7d22\u5f15\u4f18\u5316\u53ef\u6709\u6548\u63d0\u5347\u67e5\u8be2\u6027\u80fd\u3002\u7d22\u5f15\u901a\u8fc7\u6309\u7279\u5b9a\u5217\u6392\u5e8f\u6570\u636e\uff0c\u5feb\u901f\u5b9a\u4f4d\u6ee1\u8db3\u67e5\u8be2\u6761\u4ef6\u7684\u6570\u636e\u5757\uff0c\u907f\u514d\u5168\u8868\u626b\u63cf\u3002mysql\u652f\u6301\u591a\u79cd\u7d22\u5f15\u7c7b\u578b\uff0c\u5305\u62ecb\u6811\u7d22\u5f15\u3001\u54c8\u5e0c\u7d22\u5f15\u3001\u5168\u6587\u672c\u7d22\u5f15\u548c\u7a7a\u95f4\u7d22\u5f15\u3002\u521b\u5efa\u7d22\u5f15\u9700\u4f7f\u7528create index\u8bed\u53e5\uff0c\u5e76\u9009\u62e9\u7ecf\u5e38\u7528\u4e8e\u641c\u7d22\u6216\u6392\u5e8f\u7684\u5217\u3002\u4f18\u5316\u7d22\u5f15\u4f7f\u7528\u5305\u62ec\uff1a\u53ea\u4e3a\u5fc5\u8981\u5217\u521b\u5efa\u7d22\u5f15\u3001\u4f7f\u7528\u8986\u76d6\u7d22\u5f15\u3001\u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\u3002 MySQL \u6570\u636e\u5e93\u7d22\u5f15\u7684\u6709\u6548\u4f7f\u7528 \u7d22\u5f15\u662f MySQL \u6570\u636e\u5e93\u4e2d\u7684\u8868\u683c\u7ed3\u6784\uff0c\u5b83\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u548c\u68c0\u7d22\u6570\u636e\uff0c\u4ece\u800c\u663e\u8457\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\u3002 \u7d22\u5f15\u7684\u5de5\u4f5c\u539f\u7406 \u7d22\u5f15\u672c\u8d28\u4e0a\u662f\u6309\u7279\u5b9a\u5217\u6392\u5e8f\u7684\u6570\u636e\u5e93\u8868\u7684\u526f\u672c\u3002\u5b83\u5c06\u8868\u4e2d\u7684\u6570\u636e\u5212\u5206\u4e3a\u903b\u8f91\u5757\uff0c\u5e76\u4e3a\u6bcf\u4e2a\u5757\u5206\u914d\u4e00\u4e2a\u6307\u5411\u8868\u4e2d\u5b9e\u9645\u6570\u636e\u884c\u7684\u6307\u9488\u3002\u5f53\u6267\u884c\u67e5\u8be2\u65f6\uff0cMySQL \u4f7f\u7528\u7d22\u5f15\u6765\u5feb\u901f\u5b9a\u4f4d\u6ee1\u8db3\u67e5\u8be2\u6761\u4ef6\u7684\u6570\u636e\u5757\uff0c\u4ece\u800c\u907f\u514d\u626b\u63cf\u6574\u4e2a\u8868\u3002 \u7d22\u5f15\u7684\u7c7b\u578b MySQL \u652f\u6301\u591a\u79cd\u7c7b\u578b\u7684\u7d22\u5f15\uff0c\u6bcf\u79cd\u7d22\u5f15\u9488\u5bf9\u4e0d\u540c\u7684\u67e5\u8be2\u6a21\u5f0f\u8fdb\u884c\u4e86\u4f18\u5316\uff1a B \u6811\u7d22\u5f15\uff1a\u6700\u5e38\u89c1\u4e14\u7528\u9014\u6700\u5e7f\u6cdb\u7684\u7d22\u5f15\u7c7b\u578b\uff0c\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u5355\u4e2a\u6216\u8303\u56f4\u503c\u3002 \u54c8\u5e0c\u7d22\u5f15\uff1a\u7528\u4e8e\u5feb\u901f\u67e5\u627e\u57fa\u4e8e\u76f8\u7b49\u6027\u7684\u503c\u3002 \u5168\u6587\u672c\u7d22\u5f15\uff1a\u7528\u4e8e\u5728\u6587\u672c\u5b57\u6bb5\u4e2d\u641c\u7d22\u7279\u5b9a\u5355\u8bcd\u6216\u77ed\u8bed\u3002 \u7a7a\u95f4\u7d22\u5f15\uff1a\u7528\u4e8e\u57fa\u4e8e\uff08\u5982\u7ecf\u5ea6\u548c\u7eac\u5ea6\uff09\u67e5\u627e\u6570\u636e\u3002 \u521b\u5efa\u7d22\u5f15 \u53ef\u4ee5\u4f7f\u7528 CREATE INDEX \u8bed\u53e5\u5728 MySQL \u8868\u683c\u4e2d\u521b\u5efa\u7d22\u5f15\u3002\u4f8b\u5982\uff1a CREATE INDEX index_name ON table_name (column_name); \u767b\u5f55\u540e\u590d\u5236 \u4f18\u5316\u7d22\u5f15\u4f7f\u7528 \u4ee5\u4e0b\u51c6\u5219\u53ef\u5e2e\u52a9\u4f18\u5316\u7d22\u5f15\u4f7f\u7528\uff1a \u6b63\u786e\u9009\u62e9\u8981\u7d22\u5f15\u7684\u5217\uff1a\u8003\u8651\u54ea\u4e9b\u5217\u5728\u67e5\u8be2\u4e2d\u7ecf\u5e38\u7528\u4e8e\u641c\u7d22\u6216\u6392\u5e8f\u3002 \u53ea\u4e3a\u5fc5\u8981\u7684\u5217\u521b\u5efa\u7d22\u5f15\uff1a\u8fc7\u591a\u7d22\u5f15\u4f1a\u964d\u4f4e\u6570\u636e\u63d2\u5165\u548c\u66f4\u65b0\u7684\u6027\u80fd\u3002 \u4f7f\u7528\u8986\u76d6\u7d22\u5f15\uff1a\u521b\u5efa\u5305\u542b\u67e5\u8be2\u4e2d\u6240\u9700\u6240\u6709\u5217\u7684\u7d22\u5f15\uff0c\u4ee5\u907f\u514d\u8bbf\u95ee\u5b9e\u9645\u6570\u636e\u8868\u3002 \u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\uff1a\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u968f\u7740\u6570\u636e\u7684\u63d2\u5165\u548c\u5220\u9664\uff0c\u7d22\u5f15\u53ef\u80fd\u4f1a\u53d8\u5f97\u788e\u7247\u5316\uff0c\u5b9a\u671f\u91cd\u5efa\u6216\u4f18\u5316\u7d22\u5f15\u4ee5\u4fdd\u6301\u5176\u6548\u7387\u3002 \u4ee5\u4e0a\u5c31\u662f\u6570\u636e\u5e93\u7d22\u5f15\u600e\u4e48\u7528\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},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-6475","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6475","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=6475"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/6475\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=6475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=6475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=6475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}