{"id":80962,"date":"2024-10-16T14:53:17","date_gmt":"2024-10-16T06:53:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/80962\/"},"modified":"2024-10-16T14:53:17","modified_gmt":"2024-10-16T06:53:17","slug":"mysql%e5%ad%97%e7%ac%a6%e9%9b%86%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%b5%81%e7%a8%8b%e7%a4%ba%e4%be%8b","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/80962\/","title":{"rendered":"MySQL\u5b57\u7b26\u96c6\u7684\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b\u793a\u4f8b"},"content":{"rendered":"<h1 id=\"mysql%e5%ad%97%e7%ac%a6%e9%9b%86%e7%9a%84%e5%af%a6%e9%9a%9b%e6%93%8d%e4%bd%9c%e6%b5%81%e7%a8%8b%e7%a4%ba%e4%be%8b-DQLpfUuBfD\">MySQL\u5b57\u7b26\u96c6\u7684\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b\u793a\u4f8b<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u5b57\u7b26\u96c6\u7684\u9078\u64c7\u5c0d\u65bc\u6578\u64da\u7684\u5b58\u5132\u548c\u6aa2\u7d22\u81f3\u95dc\u91cd\u8981\u3002MySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7cfb\u7d71\uff0c\u63d0\u4f9b\u4e86\u591a\u7a2e\u5b57\u7b26\u96c6\u9078\u64c7\uff0c\u4ee5\u652f\u6301\u4e0d\u540c\u8a9e\u8a00\u548c\u7b26\u865f\u7684\u5b58\u5132\u9700\u6c42\u3002\u672c\u6587\u5c07\u4ecb\u7d39MySQL\u5b57\u7b26\u96c6\u7684\u57fa\u672c\u6982\u5ff5\u53ca\u5176\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b\u793a\u4f8b\uff0c\u5e6b\u52a9\u8b80\u8005\u66f4\u597d\u5730\u7406\u89e3\u5982\u4f55\u5728MySQL\u4e2d\u4f7f\u7528\u5b57\u7b26\u96c6\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-DQLpfUuBfD\">\u4ec0\u9ebc\u662f\u5b57\u7b26\u96c6\uff1f<\/h2>\n<p>\u5b57\u7b26\u96c6\u662f\u6307\u4e00\u7d44\u5b57\u7b26\u7684\u96c6\u5408\uff0c\u9019\u4e9b\u5b57\u7b26\u53ef\u4ee5\u7528\u4f86\u8868\u793a\u6587\u672c\u6578\u64da\u3002\u5728MySQL\u4e2d\uff0c\u5b57\u7b26\u96c6\u4e0d\u50c5\u5f71\u97ff\u6578\u64da\u7684\u5b58\u5132\u65b9\u5f0f\uff0c\u9084\u5f71\u97ff\u67e5\u8a62\u7684\u7d50\u679c\u3002MySQL\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u96c6\uff0c\u5982utf8\u3001utf8mb4\u3001latin1\u7b49\uff0c\u5176\u4e2dutf8mb4\u662f\u76ee\u524d\u6700\u63a8\u85a6\u7684\u5b57\u7b26\u96c6\uff0c\u56e0\u70ba\u5b83\u80fd\u5920\u652f\u6301\u6240\u6709Unicode\u5b57\u7b26\uff0c\u5305\u62ec\u8868\u60c5\u7b26\u865f\u3002<\/p>\n<h2 id=\"mysql%e5%ad%97%e7%ac%a6%e9%9b%86%e7%9a%84%e8%a8%ad%e7%bd%ae-DQLpfUuBfD\">MySQL\u5b57\u7b26\u96c6\u7684\u8a2d\u7f6e<\/h2>\n<p>\u5728MySQL\u4e2d\uff0c\u5b57\u7b26\u96c6\u7684\u8a2d\u7f6e\u53ef\u4ee5\u5728\u591a\u500b\u5c64\u7d1a\u9032\u884c\uff0c\u5305\u62ec\u4f3a\u670d\u5668\u5c64\u7d1a\u3001\u6578\u64da\u5eab\u5c64\u7d1a\u3001\u8868\u5c64\u7d1a\u548c\u5217\u5c64\u7d1a\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5728\u9019\u4e9b\u5c64\u7d1a\u4e0a\u8a2d\u7f6e\u5b57\u7b26\u96c6\u7684\u5177\u9ad4\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"1-%e4%bc%ba%e6%9c%8d%e5%99%a8%e5%b1%a4%e7%b4%9a%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86%e8%a8%ad%e7%bd%ae-DQLpfUuBfD\">1. \u4f3a\u670d\u5668\u5c64\u7d1a\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e<\/h3>\n<pre><code>SHOW VARIABLES LIKE 'character_set%';\n<\/code><\/pre>\n<p>\u4f7f\u7528\u4e0a\u8ff0\u547d\u4ee4\u53ef\u4ee5\u67e5\u770b\u7576\u524d\u4f3a\u670d\u5668\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u3002\u82e5\u8981\u66f4\u6539\u4f3a\u670d\u5668\u7684\u9ed8\u8a8d\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u5728MySQL\u914d\u7f6e\u6587\u4ef6\uff08my.cnf\u6216my.ini\uff09\u4e2d\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n<pre><code>[mysqld]\ncharacter-set-server=utf8mb4\ncollation-server=utf8mb4_unicode_ci\n<\/code><\/pre>\n<p>\u66f4\u6539\u5f8c\uff0c\u91cd\u555fMySQL\u670d\u52d9\u4ee5\u4f7f\u8a2d\u7f6e\u751f\u6548\u3002<\/p>\n<h3 id=\"2-%e6%95%b8%e6%93%9a%e5%ba%ab%e5%b1%a4%e7%b4%9a%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86%e8%a8%ad%e7%bd%ae-DQLpfUuBfD\">2. \u6578\u64da\u5eab\u5c64\u7d1a\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e<\/h3>\n<p>\u5275\u5efa\u6578\u64da\u5eab\u6642\uff0c\u53ef\u4ee5\u6307\u5b9a\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>CREATE DATABASE my_database CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;\n<\/code><\/pre>\n<p>\u82e5\u8981\u67e5\u770b\u5df2\u5b58\u5728\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>SELECT DEFAULT_CHARACTER_SET_NAME FROM information_schema.SCHEMATA WHERE SCHEMA_NAME = 'my_database';\n<\/code><\/pre>\n<h3 id=\"3-%e8%a1%a8%e5%b1%a4%e7%b4%9a%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86%e8%a8%ad%e7%bd%ae-DQLpfUuBfD\">3. \u8868\u5c64\u7d1a\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e<\/h3>\n<p>\u5728\u5275\u5efa\u8868\u6642\uff0c\u4e5f\u53ef\u4ee5\u6307\u5b9a\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>CREATE TABLE my_table (\n    id INT PRIMARY KEY,\n    name VARCHAR(100)\n) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;\n<\/code><\/pre>\n<p>\u82e5\u8981\u67e5\u770b\u8868\u7684\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n<pre><code>SHOW TABLE STATUS LIKE 'my_table';\n<\/code><\/pre>\n<h3 id=\"4-%e5%88%97%e5%b1%a4%e7%b4%9a%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86%e8%a8%ad%e7%bd%ae-DQLpfUuBfD\">4. \u5217\u5c64\u7d1a\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e<\/h3>\n<p>\u5728\u5275\u5efa\u5217\u6642\uff0c\u53ef\u4ee5\u55ae\u7368\u6307\u5b9a\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>CREATE TABLE my_table (\n    id INT PRIMARY KEY,\n    name VARCHAR(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci\n);\n<\/code><\/pre>\n<h2 id=\"%e5%ad%97%e7%ac%a6%e9%9b%86%e7%9a%84%e8%bd%89%e6%8f%9b-DQLpfUuBfD\">\u5b57\u7b26\u96c6\u7684\u8f49\u63db<\/h2>\n<p>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u53ef\u80fd\u9700\u8981\u5c07\u6578\u64da\u5eab\u6216\u8868\u7684\u5b57\u7b26\u96c6\u9032\u884c\u8f49\u63db\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u66f4\u6539\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>ALTER DATABASE my_database CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;\n<\/code><\/pre>\n<p>\u5c0d\u65bc\u8868\u7684\u5b57\u7b26\u96c6\u8f49\u63db\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>ALTER TABLE my_table CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-DQLpfUuBfD\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u5c0d\u65bc\u6578\u64da\u7684\u6b63\u78ba\u5b58\u5132\u548c\u6aa2\u7d22\u81f3\u95dc\u91cd\u8981\u3002\u901a\u904e\u4e86\u89e3\u5982\u4f55\u5728\u4f3a\u670d\u5668\u3001\u6578\u64da\u5eab\u3001\u8868\u548c\u5217\u5c64\u7d1a\u4e0a\u8a2d\u7f6e\u548c\u8f49\u63db\u5b57\u7b26\u96c6\uff0c\u4f7f\u7528\u8005\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u5176\u6578\u64da\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684\u5b57\u7b26\u96c6\u5c24\u70ba\u91cd\u8981\u3002\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\u4ee5\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3MySQL\u5b57\u7b26\u96c6\u7684\u5be6\u969b\u64cd\u4f5c\u6d41\u7a0b\uff0c\u5f9e\u8a2d\u7f6e\u5230\u67e5\u8a62\uff0c\u63d0\u4f9b\u6e05\u6670\u793a\u4f8b\uff0c\u52a9\u60a8\u6709\u6548\u7ba1\u7406\u6578\u64da\u5eab\u5b57\u7b26\u7de8\u78bc\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-80962","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/80962","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=80962"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/80962\/revisions"}],"predecessor-version":[{"id":80963,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/80962\/revisions\/80963"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=80962"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=80962"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=80962"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}