{"id":200028,"date":"2025-05-06T08:35:08","date_gmt":"2025-05-06T00:35:08","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200028\/"},"modified":"2025-05-06T08:35:08","modified_gmt":"2025-05-06T00:35:08","slug":"mysql%e6%98%af%e5%90%a6%e6%94%af%e6%8c%81%e5%a4%a7%e5%b0%8f%e5%86%99%e4%b8%8d%e6%95%8f%e6%84%9f%e7%9a%84%e6%a3%80%e7%b4%a2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200028\/","title":{"rendered":"MySQL\u662f\u5426\u652f\u6301\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u68c0\u7d22"},"content":{"rendered":"<p><b><\/b> <\/p>\n<h1>MySQL\u662f\u5426\u652f\u6301\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u68c0\u7d22<\/h1>\n<p>\u6570\u636e\u5e93\u5c0f\u767d\u4e00\u679a\uff0c\u6b63\u5728\u4e0d\u65ad\u5b66\u4e60\u79ef\u7d2f\u77e5\u8bc6\uff0c\u73b0\u5c06\u5b66\u4e60\u5230\u7684\u77e5\u8bc6\u8bb0\u5f55\u4e00\u4e0b\uff0c\u4e5f\u662f\u5c06\u6211\u7684\u6240\u5f97\u5206\u4eab\u7ed9\u5927\u5bb6\uff01\u800c\u4eca\u5929\u8fd9\u7bc7\u6587\u7ae0\u300aMySQL\u662f\u5426\u652f\u6301\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u68c0\u7d22\u300b\u5e26\u5927\u5bb6\u6765\u4e86\u89e3\u4e00\u4e0b##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p><\/p>\n<p>MySQL\u662f\u5426\u652f\u6301\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u67e5\u8be2\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/p>\n<p>\u5728\u5b9e\u9645\u7684\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u67e5\u8be2\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7684\u60c5\u51b5\u3002MySQL\u662f\u4e00\u79cd\u5e38\u7528\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u662f\u5426\u652f\u6301\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u67e5\u8be2\u5462\uff1f\u672c\u6587\u5c06\u8be6\u7ec6\u63a2\u8ba8MySQL\u4e2d\u5982\u4f55\u5b9e\u73b0\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u67e5\u8be2\uff0c\u5e76\u63d0\u4f9b\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n<h3>MySQL\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u67e5\u8be2\u7684\u5b9e\u73b0<\/h3>\n<p>MySQL\u9ed8\u8ba4\u662f\u533a\u5206\u5927\u5c0f\u5199\u7684\uff0c\u4f46\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5728\u67e5\u8be2\u7684\u65f6\u5019\u4f7f\u7528\u7279\u5b9a\u7684\u8bed\u53e5\u6765\u5b9e\u73b0\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u67e5\u8be2\u3002\u5177\u4f53\u7684\u65b9\u6cd5\u662f\u5728\u67e5\u8be2\u6761\u4ef6\u4e2d\u4f7f\u7528<code>COLLATE<\/code>\u5173\u952e\u5b57\u6765\u6307\u5b9a\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u6392\u5e8f\u89c4\u5219\u3002<\/p>\n<h3>\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/h3>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3a<code>users<\/code>\u7684\u8868\uff0c\u5176\u4e2d\u5305\u542b<code>id<\/code>\u548c<code>name<\/code>\u4e24\u4e2a\u5b57\u6bb5\uff0c\u73b0\u5728\u6211\u4eec\u9700\u8981\u67e5\u8be2\u540d\u5b57\u4e3a&#8221;Tom&#8221;\u7684\u7528\u6237\u8bb0\u5f55\uff0c\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u3002\u4e0b\u9762\u662f\u5b9e\u73b0\u7684\u5177\u4f53\u4ee3\u7801\u793a\u4f8b\uff1a<\/p>\n<pre>SELECT * FROM users WHERE name COLLATE utf8_general_ci = 'Tom' COLLATE utf8_general_ci;<\/pre>\n<p>\u5728\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u901a\u8fc7<code>COLLATE utf8_general_ci<\/code>\u6765\u6307\u5b9a\u6392\u5e8f\u89c4\u5219\u4e3a\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5b9e\u73b0\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u67e5\u8be2\u3002<\/p>\n<h3>\u5b9e\u9645\u5e94\u7528<\/h3>\n<p>\u5728\u5b9e\u9645\u7684\u5f00\u53d1\u4e2d\uff0c\u6211\u4eec\u7ecf\u5e38\u4f1a\u9047\u5230\u9700\u8981\u67e5\u8be2\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7684\u60c5\u51b5\uff0c\u6bd4\u5982\u7528\u6237\u767b\u5f55\u65f6\u8f93\u5165\u7528\u6237\u540d\u6216\u5bc6\u7801\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7b49\u573a\u666f\u3002\u4f7f\u7528MySQL\u7684\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u67e5\u8be2\u529f\u80fd\u53ef\u4ee5\u65b9\u4fbf\u6211\u4eec\u5b9e\u73b0\u8fd9\u6837\u7684\u9700\u6c42\uff0c\u63d0\u5347\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<h3>\u603b\u7ed3<\/h3>\n<p>\u672c\u6587\u4ecb\u7ecd\u4e86MySQL\u4e2d\u5982\u4f55\u5b9e\u73b0\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u67e5\u8be2\uff0c\u901a\u8fc7\u4f7f\u7528<code>COLLATE<\/code>\u5173\u952e\u5b57\u6307\u5b9a\u6392\u5e8f\u89c4\u5219\u4e3a\u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u67e5\u8be2\u3002\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0c\u8fd9\u4e2a\u529f\u80fd\u53ef\u4ee5\u5e2e\u52a9\u6211\u4eec\u66f4\u65b9\u4fbf\u5730\u5904\u7406\u4e0d\u533a\u5206\u5927\u5c0f\u5199\u7684\u67e5\u8be2\u9700\u6c42\uff0c\u63d0\u5347\u7cfb\u7edf\u7684\u7075\u6d3b\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n<p>\u7406\u8bba\u8981\u638c\u63e1\uff0c\u5b9e\u64cd\u4e0d\u80fd\u843d\uff01\u4ee5\u4e0a\u5173\u4e8e\u300aMySQL\u662f\u5426\u652f\u6301\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684\u68c0\u7d22\u300b\u7684\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u5927\u5bb6\u90fd\u638c\u63e1\u4e86\u5427\uff01\u5982\u679c\u60f3\u8981\u7ee7\u7eed\u63d0\u5347\u81ea\u5df1\u7684\u80fd\u529b\uff0c\u90a3\u4e48\u5c31\u6765\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\u5427\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>MySQL\u662f\u5426\u652f\u6301\u5927\u5c0f\u5199\u4e0d\u654f\u611f\u7684&#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-200028","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200028","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=200028"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200028\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200028"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200028"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200028"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}