{"id":102,"date":"2025-02-05T19:25:01","date_gmt":"2025-02-05T11:25:01","guid":{"rendered":"https:\/\/www.handytoo.com\/?p=102"},"modified":"2025-02-05T19:25:01","modified_gmt":"2025-02-05T11:25:01","slug":"mysql%e6%95%b0%e6%8d%ae%e5%ba%93%e5%ad%97%e7%ac%a6%e9%9b%86%e4%b8%8e%e6%8e%92%e5%ba%8f%e8%a7%84%e5%88%99","status":"publish","type":"post","link":"https:\/\/www.handytoo.com\/?p=102","title":{"rendered":"Mysql\u6570\u636e\u5e93\u5b57\u7b26\u96c6\u4e0e\u6392\u5e8f\u89c4\u5219"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">\u5b57\u7b26\u96c6<\/h2>\n\n\n\n<p>\u56e0\u4e3a\u5404\u56fd\u7684\u8bed\u8a00\u4e0d\u540c\u5bf9\u5e94\u7684\u8bed\u8a00\u7f16\u7801\u4e0d\u540c\uff0c\u6570\u636e\u5e93\u5b57\u7b26\u96c6\u5c31\u662f\u7528\u6765\u5b9a\u4e49\u5b57\u7b26\u5728\u6570\u636e\u5e93\u4e2d\u7684\u7f16\u7801\u7684\u96c6\u5408\u3002<\/p>\n\n\n\n<p>\u5e38\u89c1\u7684\u5b57\u7b26\u96c6\uff1autf8\u3001Unicode\u3001GBK\u3001GB2312\uff08\u652f\u6301\u4e2d\u6587\uff09\u3001ASCCI\uff08\u4e0d\u652f\u6301\u4e2d\u6587\uff09<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u6392\u5e8f\u89c4\u5219<\/h2>\n\n\n\n<p>\u76ee\u524d\u5927\u5bb6\u57fa\u672c\u901a\u7528\u7684utf8\uff0c\u5bf9\u5e94\u7684\u5e38\u7528\u6392\u5e8f\u89c4\u5219\u4e3a\uff1autf8_general_ci\uff0c\u6392\u5e8f\u89c4\u5219\u4e3b\u8981\u7684\u4f5c\u7528\u662f\u4e8c\u8fdb\u5236\u4fdd\u5b58\u548c\u533a\u5206\u5927\u5c0f\u5199<\/p>\n\n\n\n<p>\u6392\u5e8f\u5c3e\u7f00\u4e00\u822c\u5206\u4e3a\u4e24\u79cd\uff1autf_bin\u548cutf_general_ci<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">utf8_general_ci \u4e0d\u533a\u5206\u5927\u5c0f\u5199\uff0c\u8fd9\u4e2a\u4f60\u5728\u6ce8\u518c\u7528\u6237\u540d\u548c\u90ae\u7bb1\u7684\u65f6\u5019\u5c31\u8981\u4f7f\u7528\u3002\nutf8_general_cs \u533a\u5206\u5927\u5c0f\u5199\uff0c\u5982\u679c\u7528\u6237\u540d\u548c\u90ae\u7bb1\u7528\u8fd9\u4e2a \u5c31\u4f1a\u7167\u6210\u4e0d\u826f\u540e\u679c\nutf8_bin:\u5b57\u7b26\u4e32\u6bcf\u4e2a\u5b57\u7b26\u4e32\u7528\u4e8c\u8fdb\u5236\u6570\u636e\u7f16\u8bd1\u5b58\u50a8\u3002 \u533a\u5206\u5927\u5c0f\u5199\uff0c\u800c\u4e14\u53ef\u4ee5\u5b58\u4e8c\u8fdb\u5236\u7684\u5185\u5bb9\nutf8_general_ci\u6821\u5bf9\u901f\u5ea6\u5feb\uff0c\u4f46\u51c6\u786e\u5ea6\u7a0d\u5dee\u3002\uff08\u51c6\u786e\u5ea6\u591f\u7528\uff0c\u4e00\u822c\u5efa\u5e93\u9009\u62e9\u8fd9\u4e2a\uff09\nutf8_unicode_ci\u51c6\u786e\u5ea6\u9ad8\uff0c\u4f46\u6821\u5bf9\u901f\u5ea6\u7a0d\u6162\u3002\n<\/pre>\n\n\n\n<p>utf8_unicode_ci\u548cutf8_general_ci\u5bf9\u4e2d\u3001\u82f1\u6587\u6765\u8bf4\u6ca1\u6709\u5b9e\u8d28\u7684\u5dee\u522b\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5f71\u54cd<\/h2>\n\n\n\n<p>\u5e93\u7684\u5b57\u7b26\u96c6\u5bf9\u8868\u548c\u5b57\u6bb5\u7684\u5b57\u7b26\u96c6\u7684\u5f71\u54cd<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u6570\u636e\u5e93\u5b57\u7b26\u96c6 > \u8868\u7684\u5b57\u7b26\u96c6 > \u5b57\u6bb5\u7684\u5b57\u7b26\u96c6 \uff08\u4ece\u524d\u5f80\u540e\u4f18\u5148\u7ea7\u7531\u4f4e\u5230\u9ad8\uff0c\u4ece\u5de6\u5f80\u53f3\u7ee7\u627f\uff0c\u5982\u679c\u8868\u6ca1\u8bbe\u7f6e\u5b57\u7b26\u96c6\uff0c\u7ee7\u627f\u6570\u636e\u5e93\u7684\uff0c\u5982\u679c\u5b57\u6bb5\u6ca1\u8bbe\u7f6e\uff0c\u7ee7\u627f\u8868\u7684\uff09<\/li>\n\n\n\n<li>\u6570\u636e\u5e93\u7684\u5b57\u7b26\u96c6\u5982\u679c\u662futf8\uff0c\u8868\u548c\u5b57\u6bb5\u7684\u5b57\u7b26\u96c6\u7ee7\u627f<\/li>\n\n\n\n<li>\u5b57\u6bb5\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u89c4\u5219\u7ee7\u627f\u81ea\u8868\uff0c\u4f8b\u5982\u8868\u7684\u5b57\u7b26\u96c6\u4e3alatin1,\u90a3\u8868\u7684\u5b57\u6bb5\uff08\u5b57\u7b26\u578b\uff09\u90fd\u662flatin1<\/li>\n\n\n\n<li>\u4fee\u6539\u8868\u7684\u5b57\u7b26\u96c6\u5bf9\u65b0\u589e\u52a0\u5b57\u6bb5\u6709\u7528\uff0c\u4f46\u662f\u8001\u5b57\u6bb5\u5b57\u7b26\u96c6\u4e0d\u53d8\uff0c\u5e94\u518d\u7f16\u5199\u811a\u672c\u4fee\u6539\u8001\u6570\u636e\u7684\u5b57\u7b26\u96c6<\/li>\n\n\n\n<li>show variableslike &#8220;%char%&#8221; 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