{"id":77920,"date":"2024-10-16T11:20:17","date_gmt":"2024-10-16T03:20:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/77920\/"},"modified":"2024-10-16T11:20:18","modified_gmt":"2024-10-16T03:20:18","slug":"mysql%e6%8c%87%e4%bb%a4-collate%ef%bc%88%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/77920\/","title":{"rendered":"MySQL\u6307\u4ee4: COLLATE\uff08\u6821\u5c0d\u898f\u5247\uff09"},"content":{"rendered":"<h1 id=\"mysql%e6%8c%87%e4%bb%a4-collate%ef%bc%88%e6%a0%a1%e5%b0%8d%e8%a6%8f%e5%89%87%ef%bc%89-STfGIhPcPc\">MySQL\u6307\u4ee4: COLLATE\uff08\u6821\u5c0d\u898f\u5247\uff09<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u6642\uff0c\u4e86\u89e3COLLATE\uff08\u6821\u5c0d\u898f\u5247\uff09\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002COLLATE\u7528\u65bc\u5b9a\u7fa9\u5b57\u7b26\u4e32\u7684\u6bd4\u8f03\u548c\u6392\u5e8f\u898f\u5247\uff0c\u9019\u5c0d\u65bc\u591a\u8a9e\u8a00\u61c9\u7528\u7a0b\u5e8f\u6216\u9700\u8981\u7279\u5b9a\u6392\u5e8f\u7684\u6578\u64da\u975e\u5e38\u95dc\u9375\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eCOLLATE\u7684\u6982\u5ff5\u3001\u7528\u6cd5\u53ca\u5176\u5728MySQL\u4e2d\u7684\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afcollate%ef%bc%9f-STfGIhPcPc\">\u4ec0\u9ebc\u662fCOLLATE\uff1f<\/h2>\n<p>COLLATE\u662fMySQL\u4e2d\u7684\u4e00\u500b\u6307\u4ee4\uff0c\u7528\u65bc\u6307\u5b9a\u5b57\u7b26\u4e32\u7684\u6392\u5e8f\u548c\u6bd4\u8f03\u898f\u5247\u3002\u6bcf\u500b\u5b57\u7b26\u96c6\u90fd\u6709\u4e00\u500b\u6216\u591a\u500bCOLLATE\u9078\u9805\uff0c\u9019\u4e9b\u9078\u9805\u6c7a\u5b9a\u4e86\u5982\u4f55\u8655\u7406\u5b57\u7b26\u7684\u5927\u5c0f\u5beb\u3001\u91cd\u97f3\u7b26\u865f\u53ca\u5176\u4ed6\u7279\u6027\u3002\u901a\u904e\u4f7f\u7528COLLATE\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u63a7\u5236\u67e5\u8a62\u7d50\u679c\u7684\u6392\u5e8f\u65b9\u5f0f\uff0c\u4e26\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u6027\u3002<\/p>\n<h2 id=\"collate%e7%9a%84%e5%9f%ba%e6%9c%ac%e7%94%a8%e6%b3%95-STfGIhPcPc\">COLLATE\u7684\u57fa\u672c\u7528\u6cd5<\/h2>\n<p>\u5728MySQL\u4e2d\uff0cCOLLATE\u53ef\u4ee5\u5728\u591a\u500b\u5c64\u9762\u4e0a\u4f7f\u7528\uff0c\u5305\u62ec\u6578\u64da\u5eab\u3001\u8868\u683c\u548c\u5217\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u57fa\u672c\u7684\u7528\u6cd5\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"1-%e5%9c%a8%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e6%99%82%e6%8c%87%e5%ae%9acollate-STfGIhPcPc\">1. \u5728\u5275\u5efa\u6578\u64da\u5eab\u6642\u6307\u5b9aCOLLATE<\/h3>\n<pre><code>CREATE DATABASE my_database CHARACTER SET utf8 COLLATE utf8_general_ci;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70bamy_database\u7684\u6578\u64da\u5eab\uff0c\u4e26\u6307\u5b9a\u4e86\u5b57\u7b26\u96c6\u70bautf8\uff0c\u6821\u5c0d\u898f\u5247\u70bautf8_general_ci\u3002\u9019\u610f\u5473\u8457\u5728\u9019\u500b\u6578\u64da\u5eab\u4e2d\uff0c\u6240\u6709\u5b57\u7b26\u4e32\u7684\u6bd4\u8f03\u5c07\u4e0d\u5340\u5206\u5927\u5c0f\u5beb\u3002<\/p>\n<h3 id=\"2-%e5%9c%a8%e5%89%b5%e5%bb%ba%e8%a1%a8%e6%99%82%e6%8c%87%e5%ae%9acollate-STfGIhPcPc\">2. \u5728\u5275\u5efa\u8868\u6642\u6307\u5b9aCOLLATE<\/h3>\n<pre><code>CREATE TABLE my_table (\n    id INT PRIMARY KEY,\n    name VARCHAR(100) COLLATE utf8_unicode_ci\n);<\/code><\/pre>\n<p>\u5728\u9019\u88e1\uff0c\u6211\u5011\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70bamy_table\u7684\u8868\uff0c\u4e26\u70baname\u5217\u6307\u5b9a\u4e86utf8_unicode_ci\u7684\u6821\u5c0d\u898f\u5247\u3002\u9019\u6a23\uff0c\u5c0d\u65bcname\u5217\u7684\u5b57\u7b26\u4e32\u6bd4\u8f03\u5c07\u9075\u5faaUnicode\u7684\u6392\u5e8f\u898f\u5247\u3002<\/p>\n<h3 id=\"3-%e5%9c%a8%e6%9f%a5%e8%a9%a2%e4%b8%ad%e4%bd%bf%e7%94%a8collate-STfGIhPcPc\">3. \u5728\u67e5\u8a62\u4e2d\u4f7f\u7528COLLATE<\/h3>\n<pre><code>SELECT * FROM my_table WHERE name = 'example' COLLATE utf8_bin;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u4f7f\u7528COLLATE\u4f86\u5f37\u5236\u4f7f\u7528utf8_bin\u6821\u5c0d\u898f\u5247\u9032\u884c\u6bd4\u8f03\uff0c\u9019\u610f\u5473\u8457\u6bd4\u8f03\u5c07\u5340\u5206\u5927\u5c0f\u5beb\u3002<\/p>\n<h2 id=\"collate%e7%9a%84%e5%b8%b8%e8%a6%8b%e9%81%b8%e9%a0%85-STfGIhPcPc\">COLLATE\u7684\u5e38\u898b\u9078\u9805<\/h2>\n<p>MySQL\u63d0\u4f9b\u4e86\u591a\u7a2eCOLLATE\u9078\u9805\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u9078\u9805\uff1a<\/p>\n<ul>\n<li><strong>utf8_general_ci<\/strong>: \u4e0d\u5340\u5206\u5927\u5c0f\u5beb\u7684\u901a\u7528\u6bd4\u8f03\u3002<\/li>\n<li><strong>utf8_unicode_ci<\/strong>: \u57fa\u65bcUnicode\u7684\u6bd4\u8f03\uff0c\u9069\u5408\u591a\u8a9e\u8a00\u61c9\u7528\u3002<\/li>\n<li><strong>utf8_bin<\/strong>: \u4e8c\u9032\u5236\u6bd4\u8f03\uff0c\u5340\u5206\u5927\u5c0f\u5beb\u3002<\/li>\n<li><strong>latin1_swedish_ci<\/strong>: \u9ed8\u8a8d\u7684\u5b57\u7b26\u96c6\u548c\u6821\u5c0d\u898f\u5247\uff0c\u9069\u5408\u897f\u6b50\u8a9e\u8a00\u3002<\/li>\n<\/ul>\n<h2 id=\"collate%e7%9a%84%e6%87%89%e7%94%a8%e5%a0%b4%e6%99%af-STfGIhPcPc\">COLLATE\u7684\u61c9\u7528\u5834\u666f<\/h2>\n<p>COLLATE\u5728\u591a\u7a2e\u5834\u666f\u4e2d\u90fd\u975e\u5e38\u6709\u7528\uff0c\u7279\u5225\u662f\u5728\u4ee5\u4e0b\u60c5\u6cc1\u4e0b\uff1a<\/p>\n<ul>\n<li>\u9700\u8981\u652f\u6301\u591a\u8a9e\u8a00\u7684\u61c9\u7528\u7a0b\u5e8f\u3002<\/li>\n<li>\u9700\u8981\u7279\u5b9a\u6392\u5e8f\u898f\u5247\u7684\u5831\u544a\u6216\u67e5\u8a62\u3002<\/li>\n<li>\u9700\u8981\u5340\u5206\u5927\u5c0f\u5beb\u7684\u7528\u6236\u540d\u6216\u5bc6\u78bc\u9a57\u8b49\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-STfGIhPcPc\">\u7e3d\u7d50<\/h2>\n<p>COLLATE\u5728MySQL\u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u63a7\u5236\u5b57\u7b26\u4e32\u7684\u6bd4\u8f03\u548c\u6392\u5e8f\u898f\u5247\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528COLLATE\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u6027\u548c\u4e00\u81f4\u6027\uff0c\u7279\u5225\u662f\u5728\u591a\u8a9e\u8a00\u74b0\u5883\u4e2d\u3002\u4e86\u89e3COLLATE\u7684\u7528\u6cd5\u548c\u9078\u9805\u5c07\u6709\u52a9\u65bc\u63d0\u5347\u6578\u64da\u5eab\u7684\u6027\u80fd\u548c\u53ef\u7528\u6027\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK\u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u61c9\u7528\u7a0b\u5e8f\u958b\u767c\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u4e2d\u7684COLLATE\u6307\u4ee4\uff0c\u638c\u63e1\u5982\u4f55\u8a2d\u5b9a\u6821\u5c0d\u898f\u5247\u4ee5\u5f71\u97ff\u5b57\u4e32\u6bd4\u8f03\u548c\u6392\u5e8f\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\u6548\u7387\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-77920","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77920","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=77920"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77920\/revisions"}],"predecessor-version":[{"id":77921,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/77920\/revisions\/77921"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=77920"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=77920"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=77920"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}