{"id":170515,"date":"2024-11-06T22:36:13","date_gmt":"2024-11-06T14:36:13","guid":{"rendered":"https:\/\/server.hk\/cnblog\/170515\/"},"modified":"2024-11-06T22:36:14","modified_gmt":"2024-11-06T14:36:14","slug":"%e6%89%b9%e9%87%8f%e6%9b%bf%e6%8f%9b%e6%8c%87%e5%ae%9amysql%e5%ad%97%e6%ae%b5%e4%b8%ad%e7%9a%84%e5%ad%97%e7%ac%a6%e4%b8%b2","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/170515\/","title":{"rendered":"\u6279\u91cf\u66ff\u63db\u6307\u5b9aMySQL\u5b57\u6bb5\u4e2d\u7684\u5b57\u7b26\u4e32"},"content":{"rendered":"

\u6279\u91cf\u66ff\u63db\u6307\u5b9aMySQL\u5b57\u6bb5\u4e2d\u7684\u5b57\u7b26\u4e32<\/h1>\n

\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0c\u7d93\u5e38\u9700\u8981\u5c0d\u7279\u5b9a\u5b57\u6bb5\u4e2d\u7684\u5b57\u7b26\u4e32\u9032\u884c\u6279\u91cf\u66ff\u63db\u3002\u9019\u5728\u6578\u64da\u6e05\u7406\u3001\u6578\u64da\u9077\u79fb\u6216\u66f4\u65b0\u6578\u64da\u6642\u5c24\u70ba\u91cd\u8981\u3002MySQL\u63d0\u4f9b\u4e86\u591a\u7a2e\u65b9\u6cd5\u4f86\u5be6\u73fe\u9019\u4e00\u529f\u80fd\uff0c\u672c\u6587\u5c07\u4ecb\u7d39\u5982\u4f55\u4f7f\u7528SQL\u8a9e\u53e5\u4f86\u6279\u91cf\u66ff\u63db\u6307\u5b9a\u5b57\u6bb5\u4e2d\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n

\u4f7f\u7528UPDATE\u8a9e\u53e5\u9032\u884c\u5b57\u7b26\u4e32\u66ff\u63db<\/h2>\n

\u6700\u5e38\u898b\u7684\u65b9\u5f0f\u662f\u4f7f\u7528UPDATE<\/code>\u8a9e\u53e5\u7d50\u5408REPLACE()<\/code>\u51fd\u6578\u3002REPLACE()<\/code>\u51fd\u6578\u53ef\u4ee5\u7528\u4f86\u66ff\u63db\u5b57\u7b26\u4e32\u4e2d\u7684\u7279\u5b9a\u90e8\u5206\u3002\u5176\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

REPLACE(str, old_str, new_str)<\/code><\/pre>\n
\u5176\u4e2d\uff0cstr<\/code>\u662f\u8981\u9032\u884c\u66ff\u63db\u7684\u539f\u59cb\u5b57\u7b26\u4e32\uff0cold_str<\/code>\u662f\u9700\u8981\u88ab\u66ff\u63db\u7684\u5b57\u7b26\u4e32\uff0cnew_str<\/code>\u662f\u7528\u4f86\u66ff\u63db\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n
\u793a\u4f8b\uff1a\u6279\u91cf\u66ff\u63db\u5b57\u6bb5\u4e2d\u7684\u5b57\u7b26\u4e32<\/h3>\n
\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70bausers<\/code>\u7684\u8868\uff0c\u8a72\u8868\u4e2d\u6709\u4e00\u500b\u540d\u70baemail<\/code>\u7684\u5b57\u6bb5\uff0c\u6211\u5011\u5e0c\u671b\u5c07\u6240\u6709\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\u4e2d\u7684@old-domain.com<\/code>\u66ff\u63db\u70ba@new-domain.com<\/code>\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\uff1a<\/p>\n
UPDATE users\nSET email = REPLACE(email, '@old-domain.com', '@new-domain.com')\nWHERE email LIKE '%@old-domain.com%';<\/code><\/pre>\n
\u9019\u689d\u8a9e\u53e5\u5c07\u6703\u67e5\u627e\u6240\u6709\u5305\u542b@old-domain.com<\/code>\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff0c\u4e26\u5c07\u5176\u66ff\u63db\u70ba@new-domain.com<\/code>\u3002<\/p>\n
\u6ce8\u610f\u4e8b\u9805<\/h2>\n
\u5728\u9032\u884c\u6279\u91cf\u66ff\u63db\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u5099\u4efd\u6578\u64da\u5eab\uff0c\u4ee5\u9632\u6b62\u610f\u5916\u6578\u64da\u4e1f\u5931\u3002\u6b64\u5916\uff0c\u4f7f\u7528WHERE<\/code>\u5b50\u53e5\u53ef\u4ee5\u9650\u5236\u66f4\u65b0\u7684\u7bc4\u570d\uff0c\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u6578\u64da\u66f4\u6539\u3002<\/p>\n
\u4f7f\u7528TRANSACTION\u9032\u884c\u5b89\u5168\u64cd\u4f5c<\/h3>\n
\u70ba\u4e86\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u53ef\u4ee5\u4f7f\u7528TRANSACTION<\/code>\u4f86\u5305\u88f9\u66f4\u65b0\u64cd\u4f5c\u3002\u9019\u6a23\uff0c\u5982\u679c\u5728\u57f7\u884c\u904e\u7a0b\u4e2d\u51fa\u73fe\u932f\u8aa4\uff0c\u53ef\u4ee5\u8f15\u9b06\u56de\u6efe\u5230\u4e4b\u524d\u7684\u72c0\u614b\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528TRANSACTION<\/code>\u7684\u793a\u4f8b\uff1a<\/p>\n
START TRANSACTION;\n\nUPDATE users\nSET email = REPLACE(email, '@old-domain.com', '@new-domain.com')\nWHERE email LIKE '%@old-domain.com%';\n\nCOMMIT;<\/code><\/pre>\n
\u5728\u9019\u500b\u793a\u4f8b\u4e2d\uff0cSTART TRANSACTION<\/code>\u958b\u59cb\u4e00\u500b\u4e8b\u52d9\uff0cCOMMIT<\/code>\u5247\u63d0\u4ea4\u6240\u6709\u66f4\u6539\u3002\u5982\u679c\u5728\u66f4\u65b0\u904e\u7a0b\u4e2d\u767c\u751f\u932f\u8aa4\uff0c\u53ef\u4ee5\u4f7f\u7528ROLLBACK<\/code>\u4f86\u64a4\u92b7\u6240\u6709\u66f4\u6539\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u6279\u91cf\u66ff\u63dbMySQL\u5b57\u6bb5\u4e2d\u7684\u5b57\u7b26\u4e32\u662f\u4e00\u500b\u5e38\u898b\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u901a\u904e\u4f7f\u7528UPDATE<\/code>\u8a9e\u53e5\u548cREPLACE()<\/code>\u51fd\u6578\uff0c\u53ef\u4ee5\u9ad8\u6548\u5730\u5b8c\u6210\u9019\u4e00\u4efb\u52d9\u3002\u5728\u9032\u884c\u6b64\u985e\u64cd\u4f5c\u6642\uff0c\u52d9\u5fc5\u6ce8\u610f\u6578\u64da\u7684\u5b89\u5168\u6027\u548c\u5b8c\u6574\u6027\uff0c\u4e26\u8003\u616e\u4f7f\u7528\u4e8b\u52d9\u4f86\u4fdd\u8b77\u6578\u64da\u3002<\/p>\n
\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u6578\u64da\u7ba1\u7406\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528\u9999\u6e2fVPS<\/a>\u4f86\u904b\u884c\u60a8\u7684\u6578\u64da\u5eab\uff0c\u9019\u5c07\u70ba\u60a8\u63d0\u4f9b\u66f4\u597d\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6279\u91cf\u66ff\u6362MySQL\u5b57\u6bb5\u4e2d\u7684\u6307\u5b9a\u5b57\u7b26\u4e32\uff0c\u8f7b\u677e\u9ad8\u6548\u5730\u66f4\u65b0\u6570\u636e\uff0c\u63d0\u5347\u6570\u636e\u5e93\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-170515","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170515","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=170515"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170515\/revisions"}],"predecessor-version":[{"id":170516,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/170515\/revisions\/170516"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=170515"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=170515"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=170515"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}