{"id":62341,"date":"2024-10-13T18:12:16","date_gmt":"2024-10-13T10:12:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/62341\/"},"modified":"2024-10-13T18:12:16","modified_gmt":"2024-10-13T10:12:16","slug":"liunx%e4%b8%8b%e4%bf%ae%e6%94%b9mysql%e5%ad%97%e7%ac%a6%e9%9b%86%e7%9a%84%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/62341\/","title":{"rendered":"Liunx\u4e0b\u4fee\u6539MySQL\u5b57\u7b26\u96c6\u7684\u65b9\u6cd5"},"content":{"rendered":"<h1 id=\"linux%e4%b8%8b%e4%bf%ae%e6%94%b9mysql%e5%ad%97%e7%ac%a6%e9%9b%86%e7%9a%84%e6%96%b9%e6%b3%95-ryQsTHJCfF\">Linux\u4e0b\u4fee\u6539MySQL\u5b57\u7b26\u96c6\u7684\u65b9\u6cd5<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8a2d\u5b9a\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\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u5728Linux\u74b0\u5883\u4e0b\u4fee\u6539MySQL\u7684\u5b57\u7b26\u96c6\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u517c\u5bb9\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n<h2 id=\"%e7%82%ba%e4%bb%80%e9%ba%bc%e9%9c%80%e8%a6%81%e4%bf%ae%e6%94%b9%e5%ad%97%e7%ac%a6%e9%9b%86%ef%bc%9f-ryQsTHJCfF\">\u70ba\u4ec0\u9ebc\u9700\u8981\u4fee\u6539\u5b57\u7b26\u96c6\uff1f<\/h2>\n<p>\u5b57\u7b26\u96c6\u7684\u9078\u64c7\u5f71\u97ff\u5230\u6578\u64da\u7684\u5b58\u5132\u65b9\u5f0f\u548c\u67e5\u8a62\u7d50\u679c\u3002\u82e5\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u6216\u986f\u793a\u932f\u8aa4\u3002\u4f8b\u5982\uff0c\u82e5\u6578\u64da\u5eab\u4f7f\u7528\u7684\u5b57\u7b26\u96c6\u70balatin1\uff0c\u800c\u63d2\u5165\u7684\u6578\u64da\u5305\u542b\u4e2d\u6587\u5b57\u7b26\uff0c\u5247\u9019\u4e9b\u5b57\u7b26\u5c07\u7121\u6cd5\u6b63\u78ba\u986f\u793a\u3002\u56e0\u6b64\uff0c\u9078\u64c7\u5408\u9069\u7684\u5b57\u7b26\u96c6\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e7%95%b6%e5%89%8d%e5%ad%97%e7%ac%a6%e9%9b%86-ryQsTHJCfF\">\u6aa2\u67e5\u7576\u524d\u5b57\u7b26\u96c6<\/h2>\n<p>\u5728\u4fee\u6539\u5b57\u7b26\u96c6\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u7576\u524d\u7684\u5b57\u7b26\u96c6\u8a2d\u5b9a\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\u793aMySQL\u7684\u5404\u7a2e\u5b57\u7b26\u96c6\u8a2d\u5b9a\uff0c\u5305\u62ec\u4f3a\u670d\u5668\u3001\u6578\u64da\u5eab\u3001\u8868\u548c\u9023\u63a5\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n<h2 id=\"%e4%bf%ae%e6%94%b9mysql%e5%ad%97%e7%ac%a6%e9%9b%86-ryQsTHJCfF\">\u4fee\u6539MySQL\u5b57\u7b26\u96c6<\/h2>\n<p>\u8981\u4fee\u6539MySQL\u7684\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n<h3 id=\"1-%e4%bf%ae%e6%94%b9%e4%bc%ba%e6%9c%8d%e5%99%a8%e5%ad%97%e7%ac%a6%e9%9b%86-ryQsTHJCfF\">1. \u4fee\u6539\u4f3a\u670d\u5668\u5b57\u7b26\u96c6<\/h3>\n<p>\u8981\u4fee\u6539MySQL\u4f3a\u670d\u5668\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u7de8\u8f2fMySQL\u7684\u914d\u7f6e\u6587\u4ef6\uff08\u901a\u5e38\u4f4d\u65bc \/etc\/my.cnf \u6216 \/etc\/mysql\/my.cnf\uff09\u3002\u5728 [mysqld] \u90e8\u5206\u6dfb\u52a0\u6216\u4fee\u6539\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>[mysqld]\ncharacter-set-server=utf8mb4\ncollation-server=utf8mb4_unicode_ci<\/code><\/pre>\n<p>\u9019\u88e1\uff0cutf8mb4\u662f\u4e00\u500b\u652f\u6301\u6240\u6709Unicode\u5b57\u7b26\u7684\u5b57\u7b26\u96c6\uff0c\u9069\u5408\u5b58\u5132\u591a\u8a9e\u8a00\u6578\u64da\u3002<\/p>\n<h3 id=\"2-%e4%bf%ae%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e7%ac%a6%e9%9b%86-ryQsTHJCfF\">2. \u4fee\u6539\u6578\u64da\u5eab\u5b57\u7b26\u96c6<\/h3>\n<p>\u82e5\u8981\u4fee\u6539\u7279\u5b9a\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER DATABASE database_name CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u5c07 <code>database_name<\/code> \u66ff\u63db\u70ba\u4f60\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002<\/p>\n<h3 id=\"3-%e4%bf%ae%e6%94%b9%e8%a1%a8%e5%ad%97%e7%ac%a6%e9%9b%86-ryQsTHJCfF\">3. \u4fee\u6539\u8868\u5b57\u7b26\u96c6<\/h3>\n<p>\u82e5\u8981\u4fee\u6539\u7279\u5b9a\u8868\u7684\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER TABLE table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u5c07\u628a\u8868\u4e2d\u7684\u6240\u6709\u5217\u8f49\u63db\u70ba\u65b0\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n<h3 id=\"4-%e4%bf%ae%e6%94%b9%e5%88%97%e5%ad%97%e7%ac%a6%e9%9b%86-ryQsTHJCfF\">4. \u4fee\u6539\u5217\u5b57\u7b26\u96c6<\/h3>\n<p>\u5982\u679c\u53ea\u9700\u8981\u4fee\u6539\u7279\u5b9a\u5217\u7684\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER TABLE table_name MODIFY column_name VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u9019\u88e1\uff0c<code>column_name<\/code> \u662f\u4f60\u8981\u4fee\u6539\u7684\u5217\u540d\u3002<\/p>\n<h2 id=\"%e9%87%8d%e5%95%9fmysql%e6%9c%8d%e5%8b%99-ryQsTHJCfF\">\u91cd\u555fMySQL\u670d\u52d9<\/h2>\n<p>\u5b8c\u6210\u4e0a\u8ff0\u4fee\u6539\u5f8c\uff0c\u70ba\u4e86\u4f7f\u66f4\u6539\u751f\u6548\uff0c\u901a\u5e38\u9700\u8981\u91cd\u555fMySQL\u670d\u52d9\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u91cd\u555f\u670d\u52d9\uff1a<\/p>\n<pre><code>sudo systemctl restart mysql<\/code><\/pre>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e4%bf%ae%e6%94%b9%e7%b5%90%e6%9e%9c-ryQsTHJCfF\">\u6aa2\u67e5\u4fee\u6539\u7d50\u679c<\/h2>\n<p>\u91cd\u555f\u5f8c\uff0c\u53ef\u4ee5\u518d\u6b21\u4f7f\u7528 <code>SHOW VARIABLES LIKE 'character_set%';<\/code> \u547d\u4ee4\u4f86\u6aa2\u67e5\u5b57\u7b26\u96c6\u662f\u5426\u5df2\u6210\u529f\u4fee\u6539\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ryQsTHJCfF\">\u7e3d\u7d50<\/h2>\n<p>\u5728Linux\u74b0\u5883\u4e0b\u4fee\u6539MySQL\u5b57\u7b26\u96c6\u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\uff0c\u4f46\u537b\u5c0d\u6578\u64da\u7684\u5b8c\u6574\u6027\u548c\u517c\u5bb9\u6027\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u6b63\u78ba\u8a2d\u7f6e\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u907f\u514d\u6578\u64da\u4e1f\u5931\u548c\u986f\u793a\u932f\u8aa4\u7684\u554f\u984c\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u670d\u52d9\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u4f86\u90e8\u7f72\u60a8\u7684MySQL\u6578\u64da\u5eab\uff0c\u78ba\u4fdd\u9ad8\u6548\u548c\u5b89\u5168\u7684\u6578\u64da\u7ba1\u7406\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5728Linux\u4e0b\u4fee\u6539MySQL\u5b57\u7b26\u96c6\u7684\u65b9\u6cd5\uff0c\u786e\u4fdd\u6570\u636e\u5e93\u652f\u6301\u591a\u79cd\u8bed\u8a00\u548c\u5b57\u7b26\uff0c\u63d0\u5347\u6570\u636e\u517c\u5bb9\u6027\u4e0e\u5b58\u50a8\u6548\u7387\u3002<\/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-62341","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62341","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=62341"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62341\/revisions"}],"predecessor-version":[{"id":62342,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/62341\/revisions\/62342"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=62341"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=62341"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=62341"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}