{"id":200939,"date":"2025-05-06T14:48:03","date_gmt":"2025-05-06T06:48:03","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200939\/"},"modified":"2025-05-06T14:48:03","modified_gmt":"2025-05-06T06:48:03","slug":"mysql-%e6%94%af%e6%8c%81%e7%b4%a2%e5%bc%95%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\/200939\/","title":{"rendered":"MySQL \u652f\u6301\u7d22\u5f15\u54ea\u4e9b\u6570\u636e\u7c7b\u578b\uff1f"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL \u652f\u6301\u7d22\u5f15\u54ea\u4e9b\u6570\u636e\u7c7b\u578b\uff1f<\/h1>\n<p>\u7f16\u7a0b\u5e76\u4e0d\u662f\u4e00\u4e2a\u673a\u68b0\u6027\u7684\u5de5\u4f5c\uff0c\u800c\u662f\u9700\u8981\u6709\u601d\u8003\uff0c\u6709\u521b\u65b0\u7684\u5de5\u4f5c\uff0c\u8bed\u6cd5\u662f\u56fa\u5b9a\u7684\uff0c\u4f46\u89e3\u51b3\u95ee\u9898\u7684\u601d\u8def\u5219\u662f\u4f9d\u9760\u4eba\u7684\u601d\u7ef4\uff0c\u8fd9\u5c31\u9700\u8981\u6211\u4eec\u575a\u6301\u5b66\u4e60\u548c\u66f4\u65b0\u81ea\u5df1\u7684\u77e5\u8bc6\u3002\u4eca\u5929\u4e3b\u673a\u5b9d\u8d1d\u5c31\u6574\u7406\u5206\u4eab\u300aMySQL \u652f\u6301\u7d22\u5f15\u54ea\u4e9b\u6570\u636e\u7c7b\u578b\uff1f\u300b\uff0c\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec\uff0c\u5982\u679c\u4f60\u5bf9\u6570\u636e\u5e93\u65b9\u9762\u7684\u77e5\u8bc6\u70b9\u611f\u5174\u8da3\uff0c\u5c31\u4e0d\u8981\u9519\u8fc7\u4e3b\u673a\u5b9d\u8d1d\uff0c\u5728\u8fd9\u53ef\u4ee5\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5f00\u53d1\u80fd\u529b\u7684\u63d0\u5347\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241122\/1732248053674001f58d8c6.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>mysql\u652f\u6301\u7684\u7d22\u5f15\u5b57\u6bb5\u7c7b\u578b<\/strong><\/p>\n<p>\u5728mysql\u4e2d\uff0c\u51e0\u4e4e\u6240\u6709\u6570\u636e\u7c7b\u578b\u90fd\u53ef\u4ee5\u5efa\u7acb\u7d22\u5f15\uff0c\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><strong>\u6574\u6570\u7c7b\u578b\uff1a<\/strong> int\u3001tinyint\u3001smallint\u3001bigint\u3001bit<\/li>\n<li><strong>\u6d6e\u70b9\u7c7b\u578b\uff1a<\/strong> float\u3001double\u3001real<\/li>\n<li><strong>\u65e5\u671f\u548c\u65f6\u95f4\u7c7b\u578b\uff1a<\/strong> date\u3001time\u3001datetime\u3001timestamp<\/li>\n<li><strong>\u5b57\u7b26\u7c7b\u578b\uff1a<\/strong> char\u3001varchar\u3001text\u3001blob<\/li>\n<li><strong>decimal\u7c7b\u578b\uff1a<\/strong> decimal\u3001numeric<\/li>\n<\/ul>\n<p><strong>text\u548cblob\u7c7b\u578b\u7684\u7d22\u5f15<\/strong><\/p>\n<p>text\u548cblob\u7c7b\u578b\u5b57\u6bb5\u4e5f\u53ef\u4ee5\u8fdb\u884c\u7d22\u5f15\uff0c\u4f46\u9700\u8981\u6307\u5b9a\u524d\u7f00\u957f\u5ea6\u3002\u4f8b\u5982\uff1a<\/p>\n<pre>CREATE TABLE test (\n    blob_col BLOB,\n    INDEX(blob_col(10))\n);<\/pre>\n<p>\u524d\u7f00\u957f\u5ea6\u6700\u591a\u53ef\u4ee5\u662f1000\u5b57\u8282\uff08\u5bf9\u4e8einnodb\u8868\u662f767\u5b57\u8282\uff0c\u9664\u975e\u8bbe\u7f6e\u4e86innodb_large_prefix\uff09\u3002<\/p>\n<p>\u4eca\u5929\u5173\u4e8e\u300aMySQL \u652f\u6301\u7d22\u5f15\u54ea\u4e9b\u6570\u636e\u7c7b\u578b\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL \u652f\u6301\u7d22\u5f15\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-200939","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200939","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=200939"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200939\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200939"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200939"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200939"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}