{"id":196315,"date":"2024-11-13T22:12:20","date_gmt":"2024-11-13T14:12:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/196315\/"},"modified":"2024-11-13T22:12:21","modified_gmt":"2024-11-13T14:12:21","slug":"%e6%ad%a3%e7%a2%ba%e8%a7%a3%e6%b1%bamysql%e4%b8%ad%e6%96%87%e4%ba%82%e7%a2%bc%e7%9a%84%e5%af%a6%e6%93%8d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/196315\/","title":{"rendered":"\u6b63\u78ba\u89e3\u6c7aMySQL\u4e2d\u6587\u4e82\u78bc\u7684\u5be6\u64cd"},"content":{"rendered":"<h1 id=\"%e6%ad%a3%e7%a2%ba%e8%a7%a3%e6%b1%bamysql%e4%b8%ad%e6%96%87%e4%ba%82%e7%a2%bc%e7%9a%84%e5%af%a6%e6%93%8d-pSgSmhYfQJ\">\u6b63\u78ba\u89e3\u6c7aMySQL\u4e2d\u6587\u4e82\u78bc\u7684\u5be6\u64cd<\/h1>\n<p>\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u6642\u4ee3\uff0cMySQL\u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7136\u800c\uff0c\u8a31\u591a\u958b\u767c\u8005\u5728\u8655\u7406\u4e2d\u6587\u6578\u64da\u6642\uff0c\u7d93\u5e38\u6703\u9047\u5230\u4e82\u78bc\u7684\u554f\u984c\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u63a2\u8a0e\u5982\u4f55\u6b63\u78ba\u89e3\u6c7aMySQL\u4e2d\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u5be6\u7528\u7684\u64cd\u4f5c\u6b65\u9a5f\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%ba%82%e7%a2%bc%e7%9a%84%e5%8e%9f%e5%9b%a0-pSgSmhYfQJ\">\u4e82\u78bc\u7684\u539f\u56e0<\/h2>\n<p>\u4e2d\u6587\u4e82\u78bc\u901a\u5e38\u662f\u7531\u65bc\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\u6240\u5f15\u8d77\u7684\u3002MySQL\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u96c6\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u662fUTF-8\u548clatin1\u3002\u7576\u6578\u64da\u5eab\u3001\u8868\u683c\u6216\u5217\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u4e0d\u6b63\u78ba\u6642\uff0c\u5c07\u6703\u5c0e\u81f4\u4e2d\u6587\u5b57\u7b26\u7121\u6cd5\u6b63\u78ba\u986f\u793a\uff0c\u5f9e\u800c\u51fa\u73fe\u4e82\u78bc\u73fe\u8c61\u3002<\/p>\n<h2 id=\"%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88%e6%a6%82%e8%bf%b0-pSgSmhYfQJ\">\u89e3\u6c7a\u65b9\u6848\u6982\u8ff0<\/h2>\n<p>\u70ba\u4e86\u89e3\u6c7aMySQL\u4e2d\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c\uff0c\u6211\u5011\u9700\u8981\u78ba\u4fdd\u4ee5\u4e0b\u5e7e\u500b\u65b9\u9762\u7684\u4e00\u81f4\u6027\uff1a<\/p>\n<ul>\n<li>\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6<\/li>\n<li>\u8868\u683c\u7684\u5b57\u7b26\u96c6<\/li>\n<li>\u5217\u7684\u5b57\u7b26\u96c6<\/li>\n<li>\u9023\u63a5\u7684\u5b57\u7b26\u96c6<\/li>\n<\/ul>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%80%ef%bc%9a%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e7%ac%a6%e9%9b%86-pSgSmhYfQJ\">\u6b65\u9a5f\u4e00\uff1a\u6aa2\u67e5\u6578\u64da\u5eab\u5b57\u7b26\u96c6<\/h2>\n<p>\u9996\u5148\uff0c\u6211\u5011\u9700\u8981\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>SHOW VARIABLES LIKE 'character_set_database';<\/code><\/pre>\n<p>\u5982\u679c\u8fd4\u56de\u7684\u5b57\u7b26\u96c6\u4e0d\u662fUTF-8\uff0c\u5247\u9700\u8981\u66f4\u6539\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u4fee\u6539\uff1a<\/p>\n<pre><code>ALTER DATABASE your_database_name CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%ba%8c%ef%bc%9a%e6%aa%a2%e6%9f%a5%e8%a1%a8%e6%a0%bc%e5%ad%97%e7%ac%a6%e9%9b%86-pSgSmhYfQJ\">\u6b65\u9a5f\u4e8c\uff1a\u6aa2\u67e5\u8868\u683c\u5b57\u7b26\u96c6<\/h2>\n<p>\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u9700\u8981\u6aa2\u67e5\u8868\u683c\u7684\u5b57\u7b26\u96c6\u3002\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u67e5\u770b\u8868\u683c\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>SHOW TABLE STATUS FROM your_database_name;<\/code><\/pre>\n<p>\u5982\u679c\u8868\u683c\u7684\u5b57\u7b26\u96c6\u4e0d\u662fUTF-8\uff0c\u5247\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u4fee\u6539\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e4%b8%89%ef%bc%9a%e6%aa%a2%e6%9f%a5%e5%88%97%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86-pSgSmhYfQJ\">\u6b65\u9a5f\u4e09\uff1a\u6aa2\u67e5\u5217\u7684\u5b57\u7b26\u96c6<\/h2>\n<p>\u5728\u78ba\u4fdd\u6578\u64da\u5eab\u548c\u8868\u683c\u7684\u5b57\u7b26\u96c6\u6b63\u78ba\u5f8c\uff0c\u9084\u9700\u8981\u6aa2\u67e5\u6bcf\u4e00\u5217\u7684\u5b57\u7b26\u96c6\u3002\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u67e5\u770b\u5217\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>SHOW FULL COLUMNS FROM your_table_name;<\/code><\/pre>\n<p>\u5982\u679c\u67d0\u4e00\u5217\u7684\u5b57\u7b26\u96c6\u4e0d\u6b63\u78ba\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u4fee\u6539\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name MODIFY your_column_name VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<h2 id=\"%e6%ad%a5%e9%a9%9f%e5%9b%9b%ef%bc%9a%e8%a8%ad%e7%bd%ae%e9%80%a3%e6%8e%a5%e5%ad%97%e7%ac%a6%e9%9b%86-pSgSmhYfQJ\">\u6b65\u9a5f\u56db\uff1a\u8a2d\u7f6e\u9023\u63a5\u5b57\u7b26\u96c6<\/h2>\n<p>\u6700\u5f8c\uff0c\u78ba\u4fdd\u5728\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\u6642\uff0c\u4f7f\u7528\u6b63\u78ba\u7684\u5b57\u7b26\u96c6\u3002\u53ef\u4ee5\u5728\u9023\u63a5\u6642\u8a2d\u7f6e\u5b57\u7b26\u96c6\uff0c\u4f8b\u5982\u5728PHP\u4e2d\uff1a<\/p>\n<pre><code>mysqli_set_charset($connection, 'utf8mb4');<\/code><\/pre>\n<p>\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5728\u6578\u64da\u50b3\u8f38\u904e\u7a0b\u4e2d\uff0c\u4e2d\u6587\u5b57\u7b26\u4e0d\u6703\u51fa\u73fe\u4e82\u78bc\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-pSgSmhYfQJ\">\u7e3d\u7d50<\/h2>\n<p>\u89e3\u6c7aMySQL\u4e2d\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c\u9700\u8981\u5f9e\u6578\u64da\u5eab\u3001\u8868\u683c\u3001\u5217\u53ca\u9023\u63a5\u7b49\u591a\u500b\u65b9\u9762\u9032\u884c\u6aa2\u67e5\u548c\u8a2d\u7f6e\u3002\u901a\u904e\u78ba\u4fdd\u6240\u6709\u9019\u4e9b\u90e8\u5206\u90fd\u4f7f\u7528UTF-8\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u4e82\u78bc\u7684\u554f\u984c\u3002\u5c0d\u65bc\u9700\u8981\u9ad8\u6548\u6578\u64da\u8655\u7406\u7684\u61c9\u7528\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u670d\u52d9\u4e5f\u662f\u81f3\u95dc\u91cd\u8981\u7684\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u7a69\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u6b63\u78ba\u89e3\u6c7aMySQL\u4e2d\u6587\u4e82\u78bc\u554f\u984c\uff0c\u5be6\u64cd\u6307\u5357\u52a9\u4f60\u8f15\u9b06\u8655\u7406\u6578\u64da\u7de8\u78bc\uff0c\u78ba\u4fdd\u4e2d\u6587\u986f\u793a\u6b63\u5e38\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-196315","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196315","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=196315"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196315\/revisions"}],"predecessor-version":[{"id":196316,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/196315\/revisions\/196316"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=196315"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=196315"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=196315"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}