{"id":75762,"date":"2024-10-16T01:00:17","date_gmt":"2024-10-15T17:00:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/75762\/"},"modified":"2024-10-16T01:00:17","modified_gmt":"2024-10-15T17:00:17","slug":"mysql-%e7%b7%a8%e7%a2%bc%e5%95%8f%e9%a1%8c%e7%9a%84%e7%b6%93%e9%a9%97%e7%b8%bd%e7%b5%90","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/75762\/","title":{"rendered":"MySQL \u7de8\u78bc\u554f\u984c\u7684\u7d93\u9a57\u7e3d\u7d50"},"content":{"rendered":"

MySQL \u7de8\u78bc\u554f\u984c\u7684\u7d93\u9a57\u7e3d\u7d50<\/h1>\n

\u5728\u7576\u4eca\u7684\u6578\u64da\u9a45\u52d5\u4e16\u754c\u4e2d\uff0cMySQL \u4f5c\u70ba\u4e00\u500b\u6d41\u884c\u7684\u958b\u6e90\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u4e2d\u3002\u7136\u800c\uff0c\u96a8\u8457\u6578\u64da\u7684\u591a\u6a23\u6027\u548c\u8907\u96dc\u6027\uff0c\u7de8\u78bc\u554f\u984c\u7d93\u5e38\u6210\u70ba\u958b\u767c\u8005\u9762\u81e8\u7684\u4e00\u5927\u6311\u6230\u3002\u672c\u6587\u5c07\u7e3d\u7d50\u4e00\u4e9b\u5e38\u898b\u7684 MySQL \u7de8\u78bc\u554f\u984c\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6709\u6548\u5730\u7ba1\u7406\u6578\u64da\u3002<\/p>\n

1. \u7de8\u78bc\u7684\u57fa\u672c\u6982\u5ff5<\/h2>\n

\u5728 MySQL \u4e2d\uff0c\u7de8\u78bc\uff08Character Set\uff09\u662f\u6307\u7528\u4f86\u8868\u793a\u5b57\u7b26\u7684\u96c6\u5408\uff0c\u800c\u5b57\u7b26\u96c6\u7684\u6392\u5e8f\u898f\u5247\u5247\u7a31\u70ba\u6821\u5c0d\uff08Collation\uff09\u3002\u9078\u64c7\u5408\u9069\u7684\u7de8\u78bc\u548c\u6821\u5c0d\u5c0d\u65bc\u78ba\u4fdd\u6578\u64da\u7684\u6b63\u78ba\u5b58\u5132\u548c\u6aa2\u7d22\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n

2. \u5e38\u898b\u7684\u7de8\u78bc\u554f\u984c<\/h2>\n

2.1 \u6578\u64da\u63d2\u5165\u6642\u7684\u7de8\u78bc\u932f\u8aa4<\/h3>\n

\u7576\u6578\u64da\u4ee5\u4e0d\u6b63\u78ba\u7684\u7de8\u78bc\u63d2\u5165\u5230 MySQL \u4e2d\u6642\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u5b57\u7b26\u986f\u793a\u70ba\u4e82\u78bc\u3002\u4f8b\u5982\uff0c\u82e5\u6578\u64da\u4ee5 UTF-8 \u7de8\u78bc\u63d2\u5165\uff0c\u4f46\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u70ba Latin1\uff0c\u5247\u6703\u51fa\u73fe\u986f\u793a\u932f\u8aa4\u3002<\/p>\n

INSERT INTO users (name) VALUES ('\u5f20\u4e09'); -- \u82e5\u6578\u64da\u5eab\u5b57\u7b26\u96c6\u70ba Latin1\uff0c\u5c07\u986f\u793a\u4e82\u78bc<\/code><\/pre>\n
2.2 \u67e5\u8a62\u6642\u7684\u7de8\u78bc\u4e0d\u5339\u914d<\/h3>\n
\u5728\u67e5\u8a62\u6578\u64da\u6642\uff0c\u5982\u679c\u9023\u63a5\u7684\u5b57\u7b26\u96c6\u8207\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u4e0d\u5339\u914d\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u67e5\u8a62\u7d50\u679c\u4e0d\u6b63\u78ba\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u61c9\u7528\u7a0b\u5e8f\u8207\u6578\u64da\u5eab\u4e4b\u9593\u7684\u9023\u63a5\u8a2d\u7f6e\u4e0d\u4e00\u81f4\u6642\u3002<\/p>\n
SET NAMES 'utf8'; -- \u78ba\u4fdd\u9023\u63a5\u4f7f\u7528 UTF-8 \u7de8\u78bc<\/code><\/pre>\n
2.3 \u6578\u64da\u5c0e\u5165\u5c0e\u51fa\u6642\u7684\u7de8\u78bc\u554f\u984c<\/h3>\n
\u5728\u9032\u884c\u6578\u64da\u5c0e\u5165\u6216\u5c0e\u51fa\u6642\uff0c\u82e5\u672a\u6b63\u78ba\u8a2d\u7f6e\u7de8\u78bc\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u6216\u986f\u793a\u932f\u8aa4\u3002\u4f7f\u7528 mysqldump \u5de5\u5177\u6642\uff0c\u61c9\u6307\u5b9a\u6b63\u78ba\u7684\u7de8\u78bc\u3002<\/p>\n
mysqldump --default-character-set=utf8 -u username -p database_name > backup.sql<\/code><\/pre>\n
3. \u89e3\u6c7a\u65b9\u6848<\/h2>\n
3.1 \u8a2d\u7f6e\u6b63\u78ba\u7684\u5b57\u7b26\u96c6<\/h3>\n
\u5728\u5275\u5efa\u6578\u64da\u5eab\u548c\u8868\u6642\uff0c\u61c9\u660e\u78ba\u6307\u5b9a\u5b57\u7b26\u96c6\u548c\u6821\u5c0d\u3002\u4f8b\u5982\uff0c\u4f7f\u7528 UTF-8 \u7de8\u78bc\u53ef\u4ee5\u652f\u6301\u591a\u7a2e\u8a9e\u8a00\u7684\u5b57\u7b26\u3002<\/p>\n
CREATE DATABASE mydb CHARACTER SET utf8 COLLATE utf8_general_ci;<\/code><\/pre>\n
3.2 \u6aa2\u67e5\u9023\u63a5\u5b57\u7b26\u96c6<\/h3>\n
\u5728\u61c9\u7528\u7a0b\u5e8f\u4e2d\uff0c\u78ba\u4fdd\u5728\u9023\u63a5\u5230 MySQL \u6642\u8a2d\u7f6e\u6b63\u78ba\u7684\u5b57\u7b26\u96c6\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5728\u9023\u63a5\u5b57\u7b26\u4e32\u4e2d\u6dfb\u52a0\u53c3\u6578\u4f86\u5be6\u73fe\u3002<\/p>\n
jdbc:mysql:\/\/localhost:3306\/mydb?useUnicode=true&characterEncoding=utf8<\/code><\/pre>\n
3.3 \u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5b8c\u6574\u6027<\/h3>\n
\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u4e2d\u7684\u6578\u64da\uff0c\u78ba\u4fdd\u6c92\u6709\u51fa\u73fe\u4e82\u78bc\u6216\u4e1f\u5931\u7684\u60c5\u6cc1\u3002\u53ef\u4ee5\u4f7f\u7528 SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u7279\u5b9a\u5b57\u6bb5\u7684\u5b57\u7b26\u96c6\u3002<\/p>\n
SELECT name FROM users WHERE name REGEXP '[^\\x{0000}-\\x{FFFF}]';<\/code><\/pre>\n
4. \u7d50\u8ad6<\/h2>\n
MySQL \u7684\u7de8\u78bc\u554f\u984c\u96d6\u7136\u5e38\u898b\uff0c\u4f46\u901a\u904e\u6b63\u78ba\u7684\u8a2d\u7f6e\u548c\u5b9a\u671f\u6aa2\u67e5\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u907f\u514d\u9019\u4e9b\u554f\u984c\u3002\u4e86\u89e3\u5b57\u7b26\u96c6\u548c\u6821\u5c0d\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u4e26\u5728\u6578\u64da\u63d2\u5165\u3001\u67e5\u8a62\u53ca\u5c0e\u5165\u5c0e\u51fa\u6642\u4fdd\u6301\u4e00\u81f4\u6027\uff0c\u662f\u78ba\u4fdd\u6578\u64da\u6b63\u78ba\u6027\u7684\u95dc\u9375\u3002<\/p>\n
\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u9078\u64c7\u5408\u9069\u7684 VPS<\/a> \u89e3\u6c7a\u65b9\u6848\u4ee5\u652f\u6301\u60a8\u7684 MySQL \u6578\u64da\u5eab\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u4ee5\u7372\u53d6\u66f4\u591a\u4fe1\u606f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u7e3d\u7d50MySQL\u7de8\u78bc\u554f\u984c\u7684\u7d93\u9a57\uff0c\u63a2\u8a0e\u5e38\u898b\u932f\u8aa4\u3001\u89e3\u6c7a\u65b9\u6848\u53ca\u6700\u4f73\u5be6\u8e10\uff0c\u52a9\u4f60\u63d0\u5347\u6578\u64da\u8655\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-75762","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75762","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=75762"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75762\/revisions"}],"predecessor-version":[{"id":75763,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/75762\/revisions\/75763"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=75762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=75762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=75762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}