{"id":76042,"date":"2024-10-16T03:22:15","date_gmt":"2024-10-15T19:22:15","guid":{"rendered":"https:\/\/server.hk\/cnblog\/76042\/"},"modified":"2024-10-16T03:22:15","modified_gmt":"2024-10-15T19:22:15","slug":"mysql-%e9%80%b2%e8%a1%8creplace%e6%93%8d%e4%bd%9c%e6%99%82%e9%80%a0%e6%88%90%e6%95%b8%e6%93%9a%e4%b8%9f%e5%a4%b1-%e9%82%a3%e4%ba%9b%e5%9d%91%e4%bd%a0%e8%b8%a9%e4%ba%86%e5%97%8e","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/76042\/","title":{"rendered":"MySQL \u9032\u884cREPLACE\u64cd\u4f5c\u6642\u9020\u6210\u6578\u64da\u4e1f\u5931\u2014\u2014\u90a3\u4e9b\u5751\u4f60\u8e29\u4e86\u55ce\uff1f"},"content":{"rendered":"

MySQL \u9032\u884cREPLACE\u64cd\u4f5c\u6642\u9020\u6210\u6578\u64da\u4e1f\u5931\u2014\u2014\u90a3\u4e9b\u5751\u4f60\u8e29\u4e86\u55ce\uff1f<\/h1>\n

\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0cREPLACE\u8a9e\u53e5\u662f\u4e00\u500b\u975e\u5e38\u65b9\u4fbf\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5728\u63d2\u5165\u65b0\u6578\u64da\u7684\u540c\u6642\u81ea\u52d5\u66ff\u63db\u6389\u5df2\u5b58\u5728\u7684\u6578\u64da\u3002\u7136\u800c\uff0c\u9019\u500b\u64cd\u4f5c\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\uff0c\u7279\u5225\u662f\u7576\u958b\u767c\u8005\u5c0d\u5176\u884c\u70ba\u4e0d\u5920\u4e86\u89e3\u6642\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0eREPLACE\u64cd\u4f5c\u7684\u5de5\u4f5c\u539f\u7406\u3001\u6f5b\u5728\u7684\u6578\u64da\u4e1f\u5931\u98a8\u96aa\u4ee5\u53ca\u5982\u4f55\u907f\u514d\u9019\u4e9b\u554f\u984c\u3002<\/p>\n

REPLACE\u8a9e\u53e5\u7684\u57fa\u672c\u539f\u7406<\/h2>\n

REPLACE\u8a9e\u53e5\u7684\u57fa\u672c\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n

REPLACE INTO table_name (column1, column2, ...) VALUES (value1, value2, ...);<\/code><\/pre>\n
\u7576\u57f7\u884cREPLACE\u64cd\u4f5c\u6642\uff0cMySQL\u6703\u9996\u5148\u6aa2\u67e5\u8868\u4e2d\u662f\u5426\u5b58\u5728\u8207\u63d2\u5165\u6578\u64da\u7684\u4e3b\u9375\u6216\u552f\u4e00\u7d22\u5f15\u76f8\u5339\u914d\u7684\u884c\u3002\u5982\u679c\u5b58\u5728\uff0c\u8a72\u884c\u5c07\u88ab\u522a\u9664\uff0c\u7136\u5f8c\u63d2\u5165\u65b0\u7684\u884c\uff1b\u5982\u679c\u4e0d\u5b58\u5728\uff0c\u5247\u76f4\u63a5\u63d2\u5165\u65b0\u884c\u3002\u9019\u4e00\u904e\u7a0b\u770b\u4f3c\u7c21\u55ae\uff0c\u4f46\u5be6\u969b\u4e0a\u537b\u96b1\u85cf\u8457\u4e00\u4e9b\u6f5b\u5728\u7684\u98a8\u96aa\u3002<\/p>\n
\u6578\u64da\u4e1f\u5931\u7684\u6f5b\u5728\u98a8\u96aa<\/h2>\n
1. \u522a\u9664\u8207\u63d2\u5165\u7684\u904e\u7a0b<\/h3>\n
REPLACE\u64cd\u4f5c\u7684\u7b2c\u4e00\u6b65\u662f\u522a\u9664\u5df2\u5b58\u5728\u7684\u884c\uff0c\u9019\u610f\u5473\u8457\u5728\u522a\u9664\u548c\u63d2\u5165\u4e4b\u9593\uff0c\u8a72\u884c\u7684\u6578\u64da\u6703\u66ab\u6642\u6d88\u5931\u3002\u5982\u679c\u5728\u9019\u500b\u904e\u7a0b\u4e2d\u767c\u751f\u4e86\u932f\u8aa4\uff0c\u4f8b\u5982\u7cfb\u7d71\u5d29\u6f70\u6216\u7db2\u7d61\u554f\u984c\uff0c\u5247\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3002<\/p>\n
2. \u89f8\u767c\u5668\u7684\u5f71\u97ff<\/h3>\n
\u5982\u679c\u8868\u4e2d\u8a2d\u7f6e\u4e86\u89f8\u767c\u5668\uff0cREPLACE\u64cd\u4f5c\u53ef\u80fd\u6703\u5f15\u767c\u591a\u500b\u89f8\u767c\u5668\u7684\u57f7\u884c\uff0c\u9019\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u5916\u7684\u6578\u64da\u8b8a\u66f4\u3002\u4f8b\u5982\uff0c\u7576\u522a\u9664\u884c\u6642\uff0c\u53ef\u80fd\u6703\u89f8\u767c\u4e00\u500b\u522a\u9664\u89f8\u767c\u5668\uff0c\u9032\u800c\u5f71\u97ff\u5176\u4ed6\u8868\u4e2d\u7684\u6578\u64da\u3002<\/p>\n
3. \u5916\u9375\u7d04\u675f<\/h3>\n
\u5728\u4f7f\u7528REPLACE\u6642\uff0c\u5982\u679c\u8868\u4e2d\u5b58\u5728\u5916\u9375\u7d04\u675f\uff0c\u522a\u9664\u64cd\u4f5c\u53ef\u80fd\u6703\u5c0e\u81f4\u5916\u9375\u7d04\u675f\u9055\u53cd\uff0c\u5f9e\u800c\u5c0e\u81f4\u6574\u500b\u64cd\u4f5c\u5931\u6557\u3002\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u6578\u64da\u4e0d\u50c5\u7121\u6cd5\u63d2\u5165\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u5176\u4ed6\u76f8\u95dc\u6578\u64da\u7684\u4e1f\u5931\u3002<\/p>\n
\u5982\u4f55\u907f\u514d\u6578\u64da\u4e1f\u5931<\/h2>\n
1. \u4f7f\u7528INSERT … ON DUPLICATE KEY UPDATE<\/h3>\n
\u70ba\u4e86\u907f\u514dREPLACE\u5e36\u4f86\u7684\u6578\u64da\u4e1f\u5931\u98a8\u96aa\uff0c\u53ef\u4ee5\u8003\u616e\u4f7f\u7528INSERT … ON DUPLICATE KEY UPDATE\u8a9e\u53e5\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u9047\u5230\u91cd\u8907\u9375\u6642\u66f4\u65b0\u73fe\u6709\u884c\uff0c\u800c\u4e0d\u662f\u522a\u9664\u5b83\u5011\u3002<\/p>\n
INSERT INTO table_name (column1, column2, ...) VALUES (value1, value2, ...) \nON DUPLICATE KEY UPDATE column1 = value1, column2 = value2;<\/code><\/pre>\n
2. \u5b9a\u671f\u5099\u4efd\u6578\u64da<\/h3>\n
\u7121\u8ad6\u4f7f\u7528\u4f55\u7a2e\u64cd\u4f5c\uff0c\u5b9a\u671f\u5099\u4efd\u6578\u64da\u90fd\u662f\u4e00\u500b\u826f\u597d\u7684\u7fd2\u6163\u3002\u9019\u6a23\u5373\u4f7f\u767c\u751f\u610f\u5916\u60c5\u6cc1\uff0c\u4e5f\u80fd\u5920\u8fc5\u901f\u6062\u5fa9\u6578\u64da\u3002<\/p>\n
3. \u6e2c\u8a66\u548c\u9a57\u8b49<\/h3>\n
\u5728\u751f\u7522\u74b0\u5883\u4e2d\u57f7\u884cREPLACE\u64cd\u4f5c\u4e4b\u524d\uff0c\u61c9\u5728\u6e2c\u8a66\u74b0\u5883\u4e2d\u9032\u884c\u5145\u5206\u7684\u6e2c\u8a66\u548c\u9a57\u8b49\uff0c\u4ee5\u78ba\u4fdd\u4e0d\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
REPLACE\u64cd\u4f5c\u5728MySQL\u4e2d\u662f\u4e00\u500b\u5f37\u5927\u7684\u5de5\u5177\uff0c\u4f46\u5982\u679c\u4e0d\u52a0\u4ee5\u8b39\u614e\u4f7f\u7528\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e1f\u5931\u3002\u4e86\u89e3\u5176\u5de5\u4f5c\u539f\u7406\u548c\u6f5b\u5728\u98a8\u96aa\uff0c\u4e26\u63a1\u53d6\u9069\u7576\u7684\u9810\u9632\u63aa\u65bd\uff0c\u53ef\u4ee5\u6709\u6548\u964d\u4f4e\u9019\u4e9b\u98a8\u96aa\u3002\u5e0c\u671b\u672c\u6587\u80fd\u5e6b\u52a9\u4f60\u5728\u4f7f\u7528MySQL\u6642\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u5751\u3002<\/p>\n
\u5982\u9700\u4e86\u89e3\u66f4\u591a\u95dc\u65bc\u9999\u6e2fVPS<\/a>\u548c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u63a2\u7d22MySQL\u4e2dREPLACE\u64cd\u4f5c\u53ef\u80fd\u5c0e\u81f4\u7684\u6578\u64da\u4e1f\u5931\u554f\u984c\uff0c\u4e86\u89e3\u5e38\u898b\u9677\u9631\u53ca\u907f\u514d\u65b9\u6cd5\uff0c\u4fdd\u8b77\u4f60\u7684\u6578\u64da\u5b89\u5168\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-76042","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76042","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=76042"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76042\/revisions"}],"predecessor-version":[{"id":76043,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/76042\/revisions\/76043"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=76042"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=76042"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=76042"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}