{"id":175025,"date":"2024-11-08T02:02:26","date_gmt":"2024-11-07T18:02:26","guid":{"rendered":"https:\/\/server.hk\/cnblog\/175025\/"},"modified":"2024-11-08T02:02:27","modified_gmt":"2024-11-07T18:02:27","slug":"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%aemysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%bb%98%e8%aa%8d%e5%ad%97%e7%ac%a6%e9%9b%86%ef%bc%9f-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab-%e9%bb%98%e8%aa%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/175025\/","title":{"rendered":"\u5982\u4f55\u8a2d\u7f6eMySQL\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\uff1f (\u5275\u5efa\u6578\u64da\u5eab \u9ed8\u8a8d\u5b57\u7b26\u96c6)"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e8%a8%ad%e7%bd%aemysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e9%bb%98%e8%aa%8d%e5%ad%97%e7%ac%a6%e9%9b%86%ef%bc%9f-YPgyXDmuvx\">\u5982\u4f55\u8a2d\u7f6eMySQL\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\uff1f<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u5c0d\u65bc\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u5b58\u5132\u548c\u6aa2\u7d22\u81f3\u95dc\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u9748\u6d3b\u7684\u5b57\u7b26\u96c6\u9078\u64c7\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u8a2d\u7f6eMySQL\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\uff0c\u4e26\u63d0\u4f9b\u76f8\u95dc\u7684\u793a\u4f8b\u548c\u6b65\u9a5f\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e5%ad%97%e7%ac%a6%e9%9b%86%ef%bc%9f-YPgyXDmuvx\">\u4ec0\u9ebc\u662f\u5b57\u7b26\u96c6\uff1f<\/h2>\n<p>\u5b57\u7b26\u96c6\u662f\u7528\u4f86\u5b9a\u7fa9\u5982\u4f55\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5132\u548c\u8868\u793a\u5b57\u7b26\u7684\u96c6\u5408\u3002\u4e0d\u540c\u7684\u5b57\u7b26\u96c6\u652f\u6301\u4e0d\u540c\u7684\u5b57\u7b26\uff0c\u9019\u5c0d\u65bc\u591a\u8a9e\u8a00\u61c9\u7528\u7a0b\u5e8f\u5c24\u70ba\u91cd\u8981\u3002MySQL\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u96c6\uff0c\u5982utf8\u3001utf8mb4\u3001latin1\u7b49\uff0c\u5176\u4e2dutf8mb4\u662f\u76ee\u524d\u63a8\u85a6\u7684\u5b57\u7b26\u96c6\uff0c\u56e0\u70ba\u5b83\u652f\u6301\u6240\u6709Unicode\u5b57\u7b26\uff0c\u5305\u62ec\u8868\u60c5\u7b26\u865f\u3002<\/p>\n<h2 id=\"%e8%a8%ad%e7%bd%ae%e9%bb%98%e8%aa%8d%e5%ad%97%e7%ac%a6%e9%9b%86%e7%9a%84%e6%ad%a5%e9%a9%9f-YPgyXDmuvx\">\u8a2d\u7f6e\u9ed8\u8a8d\u5b57\u7b26\u96c6\u7684\u6b65\u9a5f<\/h2>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e7%95%b6%e5%89%8d%e5%ad%97%e7%ac%a6%e9%9b%86%e8%a8%ad%e7%bd%ae-YPgyXDmuvx\">1. \u6aa2\u67e5\u7576\u524d\u5b57\u7b26\u96c6\u8a2d\u7f6e<\/h3>\n<p>\u5728\u8a2d\u7f6e\u9ed8\u8a8d\u5b57\u7b26\u96c6\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u7576\u524d\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u547d\u4ee4\u4f86\u67e5\u770b\u7576\u524d\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\uff1a<\/p>\n<pre><code>SHOW VARIABLES LIKE 'character_set%';<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u7576\u524d\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\uff0c\u5305\u62ec\u7cfb\u7d71\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\u3001\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u4ee5\u53ca\u9023\u63a5\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n<h3 id=\"2-%e5%89%b5%e5%bb%ba%e6%95%b8%e6%93%9a%e5%ba%ab%e6%99%82%e8%a8%ad%e7%bd%ae%e5%ad%97%e7%ac%a6%e9%9b%86-YPgyXDmuvx\">2. \u5275\u5efa\u6578\u64da\u5eab\u6642\u8a2d\u7f6e\u5b57\u7b26\u96c6<\/h3>\n<p>\u5728\u5275\u5efa\u65b0\u7684\u6578\u64da\u5eab\u6642\uff0c\u53ef\u4ee5\u76f4\u63a5\u6307\u5b9a\u9ed8\u8a8d\u5b57\u7b26\u96c6\u3002\u4f8b\u5982\uff0c\u5982\u679c\u5e0c\u671b\u5275\u5efa\u4e00\u500b\u4f7f\u7528utf8mb4\u5b57\u7b26\u96c6\u7684\u6578\u64da\u5eab\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>CREATE DATABASE my_database CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>CHARACTER SET<\/code>\u6307\u5b9a\u4e86\u5b57\u7b26\u96c6\uff0c\u800c<code>COLLATE<\/code>\u5247\u6307\u5b9a\u4e86\u6392\u5e8f\u898f\u5247\u3002<code>utf8mb4_unicode_ci<\/code>\u662f\u4e00\u7a2e\u4e0d\u5340\u5206\u5927\u5c0f\u5beb\u7684\u6392\u5e8f\u898f\u5247\uff0c\u9069\u5408\u5927\u591a\u6578\u61c9\u7528\u3002<\/p>\n<h3 id=\"3-%e4%bf%ae%e6%94%b9%e7%8f%be%e6%9c%89%e6%95%b8%e6%93%9a%e5%ba%ab%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86-YPgyXDmuvx\">3. \u4fee\u6539\u73fe\u6709\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6<\/h3>\n<p>\u5982\u679c\u9700\u8981\u4fee\u6539\u73fe\u6709\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER DATABASE my_database CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u5c07\u66f4\u6539\u6307\u5b9a\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\uff0c\u4f46\u4e0d\u6703\u5f71\u97ff\u5df2\u5b58\u5728\u7684\u8868\u548c\u6578\u64da\u3002<\/p>\n<h3 id=\"4-%e4%bf%ae%e6%94%b9%e8%a1%a8%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86-YPgyXDmuvx\">4. \u4fee\u6539\u8868\u7684\u5b57\u7b26\u96c6<\/h3>\n<p>\u5982\u679c\u9700\u8981\u66f4\u6539\u6578\u64da\u5eab\u4e2d\u67d0\u500b\u8868\u7684\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER TABLE my_table CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u5c07\u628a\u8868\u4e2d\u7684\u6240\u6709\u5217\u7684\u5b57\u7b26\u96c6\u66f4\u6539\u70bautf8mb4\uff0c\u4e26\u4e14\u6703\u81ea\u52d5\u8f49\u63db\u73fe\u6709\u6578\u64da\u3002<\/p>\n<h2 id=\"%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-YPgyXDmuvx\">\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u9078\u64c7\u5b57\u7b26\u96c6\u6642\uff0c\u61c9\u8003\u616e\u5230\u61c9\u7528\u7a0b\u5e8f\u7684\u9700\u6c42\uff0c\u7279\u5225\u662f\u662f\u5426\u9700\u8981\u652f\u6301\u591a\u8a9e\u8a00\u6216\u7279\u6b8a\u5b57\u7b26\u3002<\/li>\n<li>\u5728\u9032\u884c\u5b57\u7b26\u96c6\u66f4\u6539\u4e4b\u524d\uff0c\u5efa\u8b70\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u9632\u6b62\u6578\u64da\u4e1f\u5931\u6216\u640d\u58de\u3002<\/li>\n<li>\u66f4\u6539\u5b57\u7b26\u96c6\u53ef\u80fd\u6703\u5f71\u97ff\u6027\u80fd\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u6578\u64da\u5eab\u4e2d\uff0c\u56e0\u6b64\u61c9\u8b39\u614e\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-YPgyXDmuvx\">\u7e3d\u7d50<\/h2>\n<p>\u8a2d\u7f6eMySQL\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\u662f\u4e00\u500b\u91cd\u8981\u7684\u6b65\u9a5f\uff0c\u80fd\u5920\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u5b58\u5132\u548c\u6aa2\u7d22\u3002\u901a\u904e\u4e0a\u8ff0\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u5275\u5efa\u6578\u64da\u5eab\u4e26\u8a2d\u7f6e\u6240\u9700\u7684\u5b57\u7b26\u96c6\u3002\u7121\u8ad6\u60a8\u662f\u65b0\u624b\u9084\u662f\u7d93\u9a57\u8c50\u5bcc\u7684\u958b\u767c\u8005\uff0c\u4e86\u89e3\u5982\u4f55\u7ba1\u7406\u5b57\u7b26\u96c6\u90fd\u5c07\u5c0d\u60a8\u7684\u6578\u64da\u5eab\u7ba1\u7406\u5de5\u4f5c\u5927\u6709\u88e8\u76ca\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u96a8\u6642\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u5728MySQL\u4e2d\u8a2d\u7f6e\u6578\u64da\u5eab\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\uff0c\u78ba\u4fdd\u6578\u64da\u6b63\u78ba\u5b58\u5132\u548c\u986f\u793a\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7684\u517c\u5bb9\u6027\u548c\u6027\u80fd\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-175025","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175025","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=175025"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175025\/revisions"}],"predecessor-version":[{"id":175026,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/175025\/revisions\/175026"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=175025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=175025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=175025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}