{"id":5736,"date":"2024-11-14T08:10:01","date_gmt":"2024-11-14T00:10:01","guid":{"rendered":"https:\/\/fwq.ai\/blog\/5736\/"},"modified":"2024-11-14T08:10:01","modified_gmt":"2024-11-14T00:10:01","slug":"sql%e7%b4%a2%e5%bc%95%e5%a4%b1%e6%95%88%e6%80%8e%e4%b9%88%e5%8a%9e","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/5736\/","title":{"rendered":"sql\u7d22\u5f15\u5931\u6548\u600e\u4e48\u529e"},"content":{"rendered":"<blockquote><p>\n  sql \u7d22\u5f15\u5931\u6548\u7684\u5904\u7406\u65b9\u6cd5\u5305\u62ec\uff1a\u786e\u5b9a\u5931\u6548\u539f\u56e0\uff1a\u7d22\u5f15\u4e0d\u5bf9\u9f50\u3001\u9009\u62e9\u6027\u8fc7\u4f4e\u3001\u66f4\u65b0\u9891\u7387\u8fc7\u9ad8\u3001\u7ef4\u62a4\u4e0d\u5f53\u3001\u7d22\u5f15\u5757\u6ea2\u51fa\u3002\u89e3\u51b3\u65b9\u6cd5\uff1a\u91cd\u65b0\u521b\u5efa\u6216\u91cd\u5efa\u7d22\u5f15\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u63d0\u9ad8\u7d22\u5f15\u9009\u62e9\u6027\u51cf\u5c11\u7d22\u5f15\u66f4\u65b0\u9891\u7387\u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\u4f18\u5316\u7d22\u5f15\u5757\u5927\u5c0f\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202405\/30\/2024053021422147140.jpg\" class=\"aligncenter\" title=\"sql\u7d22\u5f15\u5931\u6548\u600e\u4e48\u529e\u63d2\u56fe\" alt=\"sql\u7d22\u5f15\u5931\u6548\u600e\u4e48\u529e\u63d2\u56fe\" \/><\/p>\n<p><strong>SQL \u7d22\u5f15\u5931\u6548\u7684\u5904\u7406\u65b9\u6cd5<\/strong><\/p>\n<p>SQL \u7d22\u5f15\u5931\u6548\u662f\u6307\u7d22\u5f15\u4e0d\u518d\u6709\u6548\u5730\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u67e5\u8be2\u8fd0\u884c\u7f13\u6162\u3002\u8fd9\u79cd\u60c5\u51b5\u53ef\u80fd\u7531\u591a\u79cd\u56e0\u7d20\u5f15\u8d77\uff0c\u9700\u8981\u91c7\u53d6\u76f8\u5e94\u63aa\u65bd\u6765\u89e3\u51b3\u3002<\/p>\n<p><strong>1. \u786e\u5b9a\u7d22\u5f15\u5931\u6548\u7684\u539f\u56e0<\/strong><\/p>\n<ul>\n<li> <strong>\u7d22\u5f15\u4e0d\u5bf9\u9f50\uff1a<\/strong>\u67e5\u8be2\u8bed\u53e5\u4e2d\u7684\u5217\u987a\u5e8f\u4e0e\u7d22\u5f15\u4e2d\u5217\u7684\u987a\u5e8f\u4e0d\u5339\u914d\u4f1a\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\u3002<\/li>\n<li> <strong>\u9009\u62e9\u6027\u8fc7\u4f4e\uff1a<\/strong>\u7d22\u5f15\u5217\u7684\u503c\u8fc7\u4e8e\u76f8\u4f3c\uff0c\u5bfc\u81f4\u7d22\u5f15\u65e0\u6cd5\u6709\u6548\u533a\u5206\u6570\u636e\u884c\u3002<\/li>\n<li> <strong>\u66f4\u65b0\u9891\u7387\u8fc7\u9ad8\uff1a<\/strong>\u9891\u7e41\u66f4\u65b0\u7d22\u5f15\u5217\u4f1a\u5bfc\u81f4\u7d22\u5f15\u4fe1\u606f\u8fc7\u65f6\uff0c\u5931\u53bb\u6548\u7528\u3002<\/li>\n<li> <strong>\u7d22\u5f15\u7ef4\u62a4\u4e0d\u5f53\uff1a<\/strong>\u6ca1\u6709\u5b9a\u671f\u91cd\u65b0\u521b\u5efa\u6216\u91cd\u5efa\u7d22\u5f15\u4f1a\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\u3002<\/li>\n<li> <strong>\u7d22\u5f15\u5757\u6ea2\u51fa\uff1a<\/strong>\u5f53\u7d22\u5f15\u5757\u4e2d\u5b58\u50a8\u7684\u6570\u636e\u8d85\u8fc7\u4e00\u5b9a\u5927\u5c0f\uff0c\u53ef\u80fd\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\u3002<\/li>\n<\/ul>\n<p><strong>2. \u89e3\u51b3\u7d22\u5f15\u5931\u6548\u7684\u65b9\u6cd5<\/strong><\/p>\n<ul>\n<li> <strong>\u91cd\u65b0\u521b\u5efa\u7d22\u5f15\uff1a<\/strong>\u901a\u8fc7\u4f7f\u7528 DROP INDEX \u548c CREATE INDEX \u8bed\u53e5\u91cd\u65b0\u521b\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u4fee\u590d\u7d22\u5f15\u5931\u6548\u7684\u95ee\u9898\u3002<\/li>\n<li> <strong>\u91cd\u5efa\u7d22\u5f15\uff1a<\/strong>\u901a\u8fc7\u4f7f\u7528 REBUILD INDEX \u8bed\u53e5\u91cd\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u66f4\u65b0\u7d22\u5f15\u4fe1\u606f\uff0c\u63d0\u9ad8\u6548\u7387\u3002<\/li>\n<li> <strong>\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\uff1a<\/strong>\u8c03\u6574\u67e5\u8be2\u8bed\u53e5\u4ee5\u786e\u4fdd\u7d22\u5f15\u5217\u7684\u987a\u5e8f\u4e0e\u67e5\u8be2\u8bed\u53e5\u4e2d\u5217\u7684\u987a\u5e8f\u5339\u914d\uff0c\u5e76\u4f7f\u7528\u5408\u9002\u7684\u8c13\u8bcd\u3002<\/li>\n<li> <strong>\u63d0\u9ad8\u7d22\u5f15\u9009\u62e9\u6027\uff1a<\/strong>\u5982\u679c\u7d22\u5f15\u5217\u7684\u503c\u8fc7\u4e8e\u76f8\u4f3c\uff0c\u53ef\u4ee5\u8003\u8651\u6dfb\u52a0\u66f4\u591a\u5217\u6216\u4f7f\u7528\u51fd\u6570\u6765\u63d0\u9ad8\u7d22\u5f15\u7684\u9009\u62e9\u6027\u3002<\/li>\n<li> <strong>\u51cf\u5c11\u7d22\u5f15\u66f4\u65b0\u9891\u7387\uff1a<\/strong>\u5c3d\u53ef\u80fd\u51cf\u5c11\u5bf9\u7d22\u5f15\u5217\u7684\u66f4\u65b0\uff0c\u4ee5\u907f\u514d\u7d22\u5f15\u8fc7\u65e9\u5931\u6548\u3002<\/li>\n<li> <strong>\u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\uff1a<\/strong>\u5b9a\u671f\u4f7f\u7528 ANALYZE TABLE \u548c OPTIMIZE TABLE \u8bed\u53e5\u5206\u6790\u548c\u4f18\u5316\u8868\uff0c\u786e\u4fdd\u7d22\u5f15\u4fdd\u6301\u6700\u65b0\u548c\u9ad8\u6548\u3002<\/li>\n<li> <strong>\u4f18\u5316\u7d22\u5f15\u5757\u5927\u5c0f\uff1a<\/strong>\u5982\u679c\u7d22\u5f15\u5757\u6ea2\u51fa\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\uff0c\u53ef\u4ee5\u8c03\u6574\u670d\u52a1\u5668\u914d\u7f6e\u4ee5\u589e\u52a0\u7d22\u5f15\u5757\u5927\u5c0f\u3002<\/li>\n<\/ul>\n<p>\u4ee5\u4e0a\u5c31\u662fsql\u7d22\u5f15\u5931\u6548\u600e\u4e48\u529e\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>sql \u7d22\u5f15\u5931\u6548\u7684\u5904\u7406\u65b9\u6cd5\u5305\u62ec\uff1a\u786e\u5b9a\u5931\u6548\u539f\u56e0\uff1a\u7d22\u5f15\u4e0d\u5bf9\u9f50\u3001\u9009\u62e9\u6027\u8fc7\u4f4e\u3001\u66f4\u65b0\u9891\u7387\u8fc7\u9ad8\u3001\u7ef4\u62a4\u4e0d\u5f53\u3001\u7d22\u5f15\u5757\u6ea2\u51fa\u3002\u89e3\u51b3\u65b9\u6cd5\uff1a\u91cd\u65b0\u521b\u5efa\u6216\u91cd\u5efa\u7d22\u5f15\u4f18\u5316\u67e5\u8be2\u8bed\u53e5\u63d0\u9ad8\u7d22\u5f15\u9009\u62e9\u6027\u51cf\u5c11\u7d22\u5f15\u66f4\u65b0\u9891\u7387\u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\u4f18\u5316\u7d22\u5f15\u5757\u5927\u5c0f SQL \u7d22\u5f15\u5931\u6548\u7684\u5904\u7406\u65b9\u6cd5 SQL \u7d22\u5f15\u5931\u6548\u662f\u6307\u7d22\u5f15\u4e0d\u518d\u6709\u6548\u5730\u63d0\u9ad8\u67e5\u8be2\u6027\u80fd\uff0c\u5bfc\u81f4\u6570\u636e\u5e93\u67e5\u8be2\u8fd0\u884c\u7f13\u6162\u3002\u8fd9\u79cd\u60c5\u51b5\u53ef\u80fd\u7531\u591a\u79cd\u56e0\u7d20\u5f15\u8d77\uff0c\u9700\u8981\u91c7\u53d6\u76f8\u5e94\u63aa\u65bd\u6765\u89e3\u51b3\u3002 1. \u786e\u5b9a\u7d22\u5f15\u5931\u6548\u7684\u539f\u56e0 \u7d22\u5f15\u4e0d\u5bf9\u9f50\uff1a\u67e5\u8be2\u8bed\u53e5\u4e2d\u7684\u5217\u987a\u5e8f\u4e0e\u7d22\u5f15\u4e2d\u5217\u7684\u987a\u5e8f\u4e0d\u5339\u914d\u4f1a\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\u3002 \u9009\u62e9\u6027\u8fc7\u4f4e\uff1a\u7d22\u5f15\u5217\u7684\u503c\u8fc7\u4e8e\u76f8\u4f3c\uff0c\u5bfc\u81f4\u7d22\u5f15\u65e0\u6cd5\u6709\u6548\u533a\u5206\u6570\u636e\u884c\u3002 \u66f4\u65b0\u9891\u7387\u8fc7\u9ad8\uff1a\u9891\u7e41\u66f4\u65b0\u7d22\u5f15\u5217\u4f1a\u5bfc\u81f4\u7d22\u5f15\u4fe1\u606f\u8fc7\u65f6\uff0c\u5931\u53bb\u6548\u7528\u3002 \u7d22\u5f15\u7ef4\u62a4\u4e0d\u5f53\uff1a\u6ca1\u6709\u5b9a\u671f\u91cd\u65b0\u521b\u5efa\u6216\u91cd\u5efa\u7d22\u5f15\u4f1a\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\u3002 \u7d22\u5f15\u5757\u6ea2\u51fa\uff1a\u5f53\u7d22\u5f15\u5757\u4e2d\u5b58\u50a8\u7684\u6570\u636e\u8d85\u8fc7\u4e00\u5b9a\u5927\u5c0f\uff0c\u53ef\u80fd\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\u3002 2. \u89e3\u51b3\u7d22\u5f15\u5931\u6548\u7684\u65b9\u6cd5 \u91cd\u65b0\u521b\u5efa\u7d22\u5f15\uff1a\u901a\u8fc7\u4f7f\u7528 DROP INDEX \u548c CREATE INDEX \u8bed\u53e5\u91cd\u65b0\u521b\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u4fee\u590d\u7d22\u5f15\u5931\u6548\u7684\u95ee\u9898\u3002 \u91cd\u5efa\u7d22\u5f15\uff1a\u901a\u8fc7\u4f7f\u7528 REBUILD INDEX \u8bed\u53e5\u91cd\u5efa\u7d22\u5f15\uff0c\u53ef\u4ee5\u66f4\u65b0\u7d22\u5f15\u4fe1\u606f\uff0c\u63d0\u9ad8\u6548\u7387\u3002 \u4f18\u5316\u67e5\u8be2\u8bed\u53e5\uff1a\u8c03\u6574\u67e5\u8be2\u8bed\u53e5\u4ee5\u786e\u4fdd\u7d22\u5f15\u5217\u7684\u987a\u5e8f\u4e0e\u67e5\u8be2\u8bed\u53e5\u4e2d\u5217\u7684\u987a\u5e8f\u5339\u914d\uff0c\u5e76\u4f7f\u7528\u5408\u9002\u7684\u8c13\u8bcd\u3002 \u63d0\u9ad8\u7d22\u5f15\u9009\u62e9\u6027\uff1a\u5982\u679c\u7d22\u5f15\u5217\u7684\u503c\u8fc7\u4e8e\u76f8\u4f3c\uff0c\u53ef\u4ee5\u8003\u8651\u6dfb\u52a0\u66f4\u591a\u5217\u6216\u4f7f\u7528\u51fd\u6570\u6765\u63d0\u9ad8\u7d22\u5f15\u7684\u9009\u62e9\u6027\u3002 \u51cf\u5c11\u7d22\u5f15\u66f4\u65b0\u9891\u7387\uff1a\u5c3d\u53ef\u80fd\u51cf\u5c11\u5bf9\u7d22\u5f15\u5217\u7684\u66f4\u65b0\uff0c\u4ee5\u907f\u514d\u7d22\u5f15\u8fc7\u65e9\u5931\u6548\u3002 \u5b9a\u671f\u7ef4\u62a4\u7d22\u5f15\uff1a\u5b9a\u671f\u4f7f\u7528 ANALYZE TABLE \u548c OPTIMIZE TABLE \u8bed\u53e5\u5206\u6790\u548c\u4f18\u5316\u8868\uff0c\u786e\u4fdd\u7d22\u5f15\u4fdd\u6301\u6700\u65b0\u548c\u9ad8\u6548\u3002 \u4f18\u5316\u7d22\u5f15\u5757\u5927\u5c0f\uff1a\u5982\u679c\u7d22\u5f15\u5757\u6ea2\u51fa\u5bfc\u81f4\u7d22\u5f15\u5931\u6548\uff0c\u53ef\u4ee5\u8c03\u6574\u670d\u52a1\u5668\u914d\u7f6e\u4ee5\u589e\u52a0\u7d22\u5f15\u5757\u5927\u5c0f\u3002 \u4ee5\u4e0a\u5c31\u662fsql\u7d22\u5f15\u5931\u6548\u600e\u4e48\u529e\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-5736","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5736","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=5736"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/5736\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=5736"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=5736"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=5736"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}