{"id":180130,"date":"2024-11-09T07:39:16","date_gmt":"2024-11-08T23:39:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/180130\/"},"modified":"2024-11-09T07:39:17","modified_gmt":"2024-11-08T23:39:17","slug":"%e4%b8%89%e7%a8%aemysql%e5%bb%ba%e8%a1%a8%e4%ba%82%e7%a2%bc%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/180130\/","title":{"rendered":"\u4e09\u7a2emysql\u5efa\u8868\u4e82\u78bc\u7684\u89e3\u6c7a\u65b9\u6cd5"},"content":{"rendered":"

\u4e09\u7a2eMySQL\u5efa\u8868\u4e82\u78bc\u7684\u89e3\u6c7a\u65b9\u6cd5<\/h1>\n

\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u4e82\u78bc\u554f\u984c\u5e38\u5e38\u56f0\u64fe\u8457\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u3002\u9019\u4e9b\u4e82\u78bc\u901a\u5e38\u662f\u7531\u65bc\u5b57\u7b26\u96c6\u8a2d\u7f6e\u4e0d\u7576\u6216\u6578\u64da\u63d2\u5165\u6642\u7684\u7de8\u78bc\u4e0d\u4e00\u81f4\u6240\u5f15\u8d77\u7684\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u4e09\u7a2e\u5e38\u898b\u7684MySQL\u5efa\u8868\u4e82\u78bc\u7684\u89e3\u6c7a\u65b9\u6cd5\uff0c\u5e6b\u52a9\u60a8\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002<\/p>\n

\u4e00\u3001\u8a2d\u7f6e\u6b63\u78ba\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247<\/h2>\n

\u5728\u5275\u5efa\u6578\u64da\u8868\u6642\uff0c\u9078\u64c7\u5408\u9069\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\u662f\u9632\u6b62\u4e82\u78bc\u7684\u7b2c\u4e00\u6b65\u3002MySQL\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u96c6\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u662futf8\u548cutf8mb4\u3002utf8mb4\u5b57\u7b26\u96c6\u80fd\u5920\u652f\u6301\u6240\u6709Unicode\u5b57\u7b26\uff0c\u5305\u62ec\u8868\u60c5\u7b26\u865f\u7b49\u3002<\/p>\n

CREATE TABLE example (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    name VARCHAR(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci\n) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;<\/code><\/pre>\n
\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff0c\u6211\u5011\u5728\u5275\u5efa\u8868\u6642\u660e\u78ba\u6307\u5b9a\u4e86\u5b57\u7b26\u96c6\u70bautf8mb4\uff0c\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u63d2\u5165\u7684\u6578\u64da\u4e0d\u6703\u51fa\u73fe\u4e82\u78bc\u3002<\/p>\n
\u4e8c\u3001\u78ba\u4fdd\u6578\u64da\u5eab\u548c\u9023\u63a5\u7684\u5b57\u7b26\u96c6\u4e00\u81f4<\/h2>\n
\u9664\u4e86\u5728\u5efa\u8868\u6642\u8a2d\u7f6e\u5b57\u7b26\u96c6\u5916\uff0c\u9084\u9700\u8981\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8207\u61c9\u7528\u7a0b\u5e8f\u7684\u9023\u63a5\u5b57\u7b26\u96c6\u4e00\u81f4\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0bSQL\u8a9e\u53e5\u6aa2\u67e5\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n
SHOW VARIABLES LIKE 'character_set%';<\/code><\/pre>\n
\u5982\u679c\u767c\u73fe\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8207\u61c9\u7528\u7a0b\u5e8f\u7684\u5b57\u7b26\u96c6\u4e0d\u4e00\u81f4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\u4f86\u4fee\u6539\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n
ALTER DATABASE your_database_name CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n
\u540c\u6642\uff0c\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\u9023\u63a5\u6578\u64da\u5eab\u6642\uff0c\u61c9\u660e\u78ba\u6307\u5b9a\u5b57\u7b26\u96c6\u3002\u4f8b\u5982\uff0c\u5728PHP\u4e2d\u53ef\u4ee5\u9019\u6a23\u8a2d\u7f6e\uff1a<\/p>\n
$mysqli = new mysqli(\"localhost\", \"user\", \"password\", \"database\");\n$mysqli->set_charset(\"utf8mb4\");<\/code><\/pre>\n
\u4e09\u3001\u6aa2\u67e5\u6578\u64da\u63d2\u5165\u6642\u7684\u7de8\u78bc<\/h2>\n
\u6578\u64da\u63d2\u5165\u6642\u7684\u7de8\u78bc\u4e0d\u6b63\u78ba\u4e5f\u6703\u5c0e\u81f4\u4e82\u78bc\u554f\u984c\u3002\u78ba\u4fdd\u5728\u63d2\u5165\u6578\u64da\u4e4b\u524d\uff0c\u6578\u64da\u7684\u7de8\u78bc\u683c\u5f0f\u8207\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u4e00\u81f4\u3002\u4f8b\u5982\uff0c\u5982\u679c\u60a8\u5f9eCSV\u6587\u4ef6\u5c0e\u5165\u6578\u64da\uff0c\u8acb\u78ba\u4fdd\u8a72\u6587\u4ef6\u7684\u7de8\u78bc\u70baUTF-8\u3002<\/p>\n
\u5728\u4f7f\u7528LOAD DATA INFILE\u5c0e\u5165\u6578\u64da\u6642\uff0c\u53ef\u4ee5\u6307\u5b9a\u5b57\u7b26\u96c6\uff1a<\/p>\n
LOAD DATA INFILE 'data.csv' \nINTO TABLE example \nCHARACTER SET utf8mb4 \nFIELDS TERMINATED BY ',' \nLINES TERMINATED BY 'n';<\/code><\/pre>\n
\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u5c0e\u5165\u7684\u6578\u64da\u4e0d\u6703\u51fa\u73fe\u4e82\u78bc\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u89e3\u6c7aMySQL\u5efa\u8868\u4e82\u78bc\u554f\u984c\u7684\u95dc\u9375\u5728\u65bc\u6b63\u78ba\u8a2d\u7f6e\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u548c\u61c9\u7528\u7a0b\u5e8f\u7684\u5b57\u7b26\u96c6\u4e00\u81f4\uff0c\u4ee5\u53ca\u6aa2\u67e5\u6578\u64da\u63d2\u5165\u6642\u7684\u7de8\u78bc\u3002\u901a\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u4e82\u78bc\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u6027\u548c\u5b8c\u6574\u6027\u3002<\/p>\n
\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc\u9999\u6e2fVPS<\/a>\u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u8cc7\u6e90\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22\u4e09\u7a2e\u89e3\u6c7aMySQL\u5efa\u8868\u4e82\u78bc\u7684\u65b9\u6cd5\uff0c\u78ba\u4fdd\u6578\u64da\u6b63\u78ba\u986f\u793a\uff0c\u63d0\u5347\u6578\u64da\u5eab\u7ba1\u7406\u6548\u7387\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-180130","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180130","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=180130"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180130\/revisions"}],"predecessor-version":[{"id":180131,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/180130\/revisions\/180131"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=180130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=180130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=180130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}