{"id":171867,"date":"2024-11-07T08:19:17","date_gmt":"2024-11-07T00:19:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/171867\/"},"modified":"2024-11-07T08:19:18","modified_gmt":"2024-11-07T00:19:18","slug":"%e8%bc%95%e9%ac%86%e5%ad%b8%e7%bf%92%ef%bc%9a%e6%9b%b4%e6%94%b9mysql%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a2%bc%e6%8c%87%e5%8d%97-%e6%9b%b4%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b7%a8%e7%a2%bcmysq","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/171867\/","title":{"rendered":"\u8f15\u9b06\u5b78\u7fd2\uff1a\u66f4\u6539MySQL\u6578\u64da\u5eab\u7de8\u78bc\u6307\u5357 (\u66f4\u6539\u6578\u64da\u5eab\u7de8\u78bcmysql)"},"content":{"rendered":"

\u8f15\u9b06\u5b78\u7fd2\uff1a\u66f4\u6539MySQL\u6578\u64da\u5eab\u7de8\u78bc\u6307\u5357<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0c\u6578\u64da\u5eab\u7684\u7de8\u78bc\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\u63d0\u4f9b\u4e86\u591a\u7a2e\u7de8\u78bc\u9078\u9805\uff0c\u4ee5\u652f\u6301\u4e0d\u540c\u8a9e\u8a00\u548c\u5b57\u7b26\u96c6\u7684\u6578\u64da\u3002\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u66f4\u6539MySQL\u6578\u64da\u5eab\u7684\u7de8\u78bc\uff0c\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7ba1\u7406\u548c\u4f7f\u7528\u6578\u64da\u3002<\/p>\n

\u70ba\u4ec0\u9ebc\u9700\u8981\u66f4\u6539\u6578\u64da\u5eab\u7de8\u78bc\uff1f<\/h2>\n

\u6578\u64da\u5eab\u7de8\u78bc\u6c7a\u5b9a\u4e86\u6578\u64da\u5982\u4f55\u88ab\u5b58\u5132\u548c\u6aa2\u7d22\u3002\u5982\u679c\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u9700\u8981\u652f\u6301\u591a\u7a2e\u8a9e\u8a00\u6216\u7279\u6b8a\u5b57\u7b26\uff0c\u5247\u9700\u8981\u9078\u64c7\u5408\u9069\u7684\u7de8\u78bc\u3002\u4f8b\u5982\uff0cUTF-8\u7de8\u78bc\u80fd\u5920\u652f\u6301\u5e7e\u4e4e\u6240\u6709\u7684\u8a9e\u8a00\u5b57\u7b26\uff0c\u9019\u4f7f\u5f97\u5b83\u6210\u70ba\u4e00\u500b\u7406\u60f3\u7684\u9078\u64c7\u3002\u82e5\u6578\u64da\u5eab\u7684\u7de8\u78bc\u4e0d\u6b63\u78ba\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u986f\u793a\u70ba\u4e82\u78bc\uff0c\u5f71\u97ff\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n

\u6aa2\u67e5\u7576\u524d\u6578\u64da\u5eab\u7de8\u78bc<\/h2>\n

\u5728\u66f4\u6539\u6578\u64da\u5eab\u7de8\u78bc\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u7576\u524d\u7684\u7de8\u78bc\u8a2d\u5b9a\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u67e5\u8a62\u4f86\u67e5\u770b\u7576\u524d\u6578\u64da\u5eab\u7684\u7de8\u78bc\uff1a<\/p>\n

SHOW VARIABLES LIKE 'character_set_database';<\/code><\/pre>\n
\u9019\u5c07\u986f\u793a\u7576\u524d\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u3002\u5982\u679c\u9700\u8981\u66f4\u6539\uff0c\u8acb\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\u3002<\/p>\n
\u66f4\u6539\u6578\u64da\u5eab\u7de8\u78bc<\/h2>\n
\u8981\u66f4\u6539MySQL\u6578\u64da\u5eab\u7684\u7de8\u78bc\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u547d\u4ee4\uff1a<\/p>\n
ALTER DATABASE your_database_name CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0c`your_database_name`\u662f\u60a8\u8981\u66f4\u6539\u7de8\u78bc\u7684\u6578\u64da\u5eab\u540d\u7a31\u3002`utf8mb4`\u662f\u4e00\u7a2e\u652f\u6301\u6240\u6709Unicode\u5b57\u7b26\u7684\u7de8\u78bc\uff0c\u800c`utf8mb4_unicode_ci`\u5247\u662f\u76f8\u61c9\u7684\u6392\u5e8f\u898f\u5247\u3002<\/p>\n
\u66f4\u6539\u8868\u548c\u5217\u7684\u7de8\u78bc<\/h2>\n
\u66f4\u6539\u6578\u64da\u5eab\u7684\u7de8\u78bc\u5f8c\uff0c\u60a8\u9084\u9700\u8981\u78ba\u4fdd\u6240\u6709\u8868\u548c\u5217\u7684\u7de8\u78bc\u4e5f\u76f8\u61c9\u66f4\u6539\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u4f86\u66f4\u6539\u8868\u7684\u7de8\u78bc\uff1a<\/p>\n
ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n
\u540c\u6a23\uff0c`your_table_name`\u662f\u60a8\u8981\u66f4\u6539\u7684\u8868\u540d\u3002\u9019\u500b\u547d\u4ee4\u5c07\u6703\u5c07\u8868\u4e2d\u7684\u6240\u6709\u5217\u7684\u7de8\u78bc\u66f4\u6539\u70ba\u6307\u5b9a\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n
\u5982\u679c\u60a8\u53ea\u60f3\u66f4\u6539\u7279\u5b9a\u5217\u7684\u7de8\u78bc\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
ALTER TABLE your_table_name MODIFY your_column_name VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n
\u5728\u9019\u88e1\uff0c`your_column_name`\u662f\u60a8\u8981\u66f4\u6539\u7684\u5217\u540d\uff0c`VARCHAR(255)`\u662f\u8a72\u5217\u7684\u6578\u64da\u985e\u578b\u3002<\/p>\n
\u6aa2\u67e5\u66f4\u6539\u7d50\u679c<\/h2>\n
\u5b8c\u6210\u7de8\u78bc\u66f4\u6539\u5f8c\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u6aa2\u67e5\u8868\u548c\u5217\u7684\u7de8\u78bc\uff1a<\/p>\n
SHOW CREATE TABLE your_table_name;<\/code><\/pre>\n
\u9019\u5c07\u986f\u793a\u8868\u7684\u5275\u5efa\u8a9e\u53e5\uff0c\u5305\u62ec\u7576\u524d\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u66f4\u6539MySQL\u6578\u64da\u5eab\u7684\u7de8\u78bc\u662f\u4e00\u500b\u91cd\u8981\u7684\u6b65\u9a5f\uff0c\u80fd\u5920\u78ba\u4fdd\u60a8\u7684\u6578\u64da\u6b63\u78ba\u5b58\u5132\u548c\u6aa2\u7d22\u3002\u901a\u904e\u4e0a\u8ff0\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5730\u6aa2\u67e5\u548c\u66f4\u6539\u6578\u64da\u5eab\u3001\u8868\u53ca\u5217\u7684\u7de8\u78bc\u8a2d\u7f6e\u3002\u9078\u64c7\u5408\u9069\u7684\u7de8\u78bc\u4e0d\u50c5\u80fd\u63d0\u9ad8\u6578\u64da\u7684\u517c\u5bb9\u6027\uff0c\u9084\u80fd\u6539\u5584\u7528\u6236\u9ad4\u9a57\u3002<\/p>\n
\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u5e6b\u52a9\u60a8\u8f15\u9b06\u7ba1\u7406\u60a8\u7684\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u3002\u7121\u8ad6\u662f \u9999\u6e2f\u4f3a\u670d\u5668<\/a> \u9084\u662f \u96f2\u4f3a\u670d\u5668<\/a>\uff0c\u6211\u5011\u90fd\u80fd\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u8f15\u9b06\u5b78\u7fd2\u5982\u4f55\u66f4\u6539MySQL\u6578\u64da\u5eab\u7de8\u78bc\uff0c\u63d0\u5347\u6578\u64da\u8655\u7406\u6548\u7387\uff0c\u78ba\u4fdd\u5b57\u7b26\u6b63\u78ba\u986f\u793a\uff0c\u7c21\u5316\u6578\u64da\u7ba1\u7406\u6d41\u7a0b\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-171867","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171867","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=171867"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171867\/revisions"}],"predecessor-version":[{"id":171868,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/171867\/revisions\/171868"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=171867"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=171867"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=171867"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}