{"id":200547,"date":"2025-05-06T10:36:12","date_gmt":"2025-05-06T02:36:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200547\/"},"modified":"2025-05-06T10:36:12","modified_gmt":"2025-05-06T02:36:12","slug":"mysql-%e7%b4%a2%e5%bc%95%e6%94%af%e6%8c%81%e5%93%aa%e4%ba%9b%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200547\/","title":{"rendered":"MySQL \u7d22\u5f15\u652f\u6301\u54ea\u4e9b\u6570\u636e\u7c7b\u578b\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u7d22\u5f15\u652f\u6301\u54ea\u4e9b\u6570\u636e\u7c7b\u578b\uff1f<\/h1>\n<p>\u4eca\u65e5\u4e0d\u80af\u57cb\u5934\uff0c\u660e\u65e5\u4f55\u4ee5\u62ac\u5934\uff01\u6bcf\u65e5\u4e00\u53e5\u52aa\u529b\u81ea\u5df1\u7684\u8bdd\u54c8\u54c8~\u54c8\u55bd\uff0c\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u5e26\u6765\u4e00\u7bc7\uff0c\u4e3b\u8981\u5185\u5bb9\u662f\u8bb2\u89e3\u7b49\u7b49\uff0c\u611f\u5174\u8da3\u7684\u670b\u53cb\u53ef\u4ee5\u6536\u85cf\u6216\u8005\u6709\u66f4\u597d\u7684\u5efa\u8bae\u5728\u8bc4\u8bba\u63d0\u51fa\uff0c\u6211\u90fd\u4f1a\u8ba4\u771f\u770b\u7684\uff01\u5927\u5bb6\u4e00\u8d77\u8fdb\u6b65\uff0c\u4e00\u8d77\u5b66\u4e60\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241108\/1731035747672d8263b912e.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql\u7d22\u5f15\u652f\u6301\u54ea\u4e9b\u6570\u636e\u7c7b\u578b\uff1f<\/strong><\/p>\n<p>mysql\u6570\u636e\u5e93\u652f\u6301\u5bf9\u6240\u6709\u6570\u636e\u7c7b\u578b\u521b\u5efa\u7d22\u5f15\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u6574\u578b\uff08int\uff09<\/li>\n<li>\u5b57\u7b26\u4e32\uff08varchar\u3001char\uff09<\/li>\n<li>\u65e5\u671f\uff08date\uff09<\/li>\n<li>\u6587\u672c\uff08text\uff09<\/li>\n<li>\u53cc\u7cbe\u5ea6\u6d6e\u70b9\u6570\uff08double\uff09<\/li>\n<li>\u5355\u7cbe\u5ea6\u6d6e\u70b9\u6570\uff08float\uff09<\/li>\n<li>\u5341\u8fdb\u5236\u6570\uff08decimal\uff09<\/li>\n<li>\u65e5\u671f\u65f6\u95f4\uff08datetime\uff09<\/li>\n<\/ul>\n<p>\u503c\u5f97\u6ce8\u610f\u7684\u662f\uff0c\u5bf9\u4e8e<strong>blob<\/strong>\u548c<strong>text<\/strong>\u7c7b\u578b\u5b57\u6bb5\uff0c\u5728\u521b\u5efa\u7d22\u5f15\u65f6\u9700\u8981\u6307\u5b9a\u4e00\u4e2a\u524d\u7f00\u957f\u5ea6\u3002\u524d\u7f00\u957f\u5ea6\u51b3\u5b9a\u4e86\u7d22\u5f15\u4f7f\u7528\u7684\u5b57\u7b26\u6216\u5b57\u8282\u6570\uff0c\u8fd9\u6709\u52a9\u4e8e\u63d0\u9ad8\u7d22\u5f15\u6548\u7387\u3002<\/p>\n<p>\u4f8b\u5982\uff0c\u4ee5\u4e0b\u8bed\u53e5\u4e3a<strong>blob<\/strong>\u7c7b\u578b\u5b57\u6bb5\u521b\u5efa\u7d22\u5f15\uff0c\u5e76\u6307\u5b9a\u524d\u7f00\u957f\u5ea6\u4e3a10\u4e2a\u5b57\u8282\uff1a<\/p>\n<pre>CREATE TABLE test (blob_col BLOB, INDEX(blob_col(10)));<\/pre>\n<p>\u524d\u7f00\u957f\u5ea6\u6700\u591a\u53ef\u4ee5\u8bbe\u7f6e\u52301000\u4e2a\u5b57\u8282\uff08\u5bf9\u4e8einnodb\u8868\uff0c\u9664\u975e\u8bbe\u7f6e\u4e86innodb_large_prefix\u9009\u9879\uff0c\u5219\u4e3a767\u4e2a\u5b57\u8282\uff09\u3002\u6307\u5b9a\u9002\u5f53\u7684\u524d\u7f00\u957f\u5ea6\u53ef\u4ee5\u6839\u636e\u6570\u636e\u7684\u5b9e\u9645\u503c\u6765\u63d0\u9ad8\u7d22\u5f15\u7684\u6709\u6548\u6027\u3002<\/p>\n<p>\u672c\u7bc7\u5173\u4e8e\u300aMySQL \u7d22\u5f15\u652f\u6301\u54ea\u4e9b\u6570\u636e\u7c7b\u578b\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8e\u6570\u636e\u5e93\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u7d22\u5f15\u652f\u6301\u54ea\u4e9b\u6570\u636e\u7c7b\u578b&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-200547","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200547","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=200547"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200547\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}