{"id":177145,"date":"2024-11-08T13:43:21","date_gmt":"2024-11-08T05:43:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177145\/"},"modified":"2024-11-08T13:43:22","modified_gmt":"2024-11-08T05:43:22","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41062-sql%e7%8b%80%e6%85%8b%ef%bc%9a23000%ef%bc%88er_dup_entry%ef%bc%89%e9%8d%b5d%e4%b8%ad%e5%ad%98%e5%9c%a8%e9%87%8d%e8%a4%87%e6%a2%9d","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177145\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41062 &#8211; SQL\u72c0\u614b\uff1a23000\uff08ER_DUP_ENTRY\uff09\u9375%d\u4e2d\u5b58\u5728\u91cd\u8907\u689d\u76ee\u201c\uff05s\u201d"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41062-sql%e7%8b%80%e6%85%8b%ef%bc%9a23000%ef%bc%88er_dup_entry%ef%bc%89-iqoobVCrHG\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41062 &#8211; SQL\u72c0\u614b\uff1a23000\uff08ER_DUP_ENTRY\uff09<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa41062\uff0c\u8a72\u932f\u8aa4\u7684SQL\u72c0\u614b\u70ba23000\uff0c\u8868\u793a\u5728\u63d2\u5165\u6216\u66f4\u65b0\u6578\u64da\u6642\u51fa\u73fe\u4e86\u91cd\u8907\u689d\u76ee\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u6709\u6548\u5730\u4fee\u5fa9\u5b83\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a41062%e7%9a%84%e5%8e%9f%e5%9b%a0-iqoobVCrHG\">\u932f\u8aa41062\u7684\u539f\u56e0<\/h2>\n<p>\u932f\u8aa41062\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u5617\u8a66\u63d2\u5165\u4e00\u689d\u8a18\u9304\uff0c\u800c\u8a72\u8a18\u9304\u7684\u4e3b\u9375\u6216\u552f\u4e00\u7d22\u5f15\u5df2\u7d93\u5b58\u5728\u65bc\u6578\u64da\u8868\u4e2d\u3002<\/li>\n<li>\u5728\u66f4\u65b0\u64cd\u4f5c\u4e2d\uff0c\u8a66\u5716\u5c07\u67d0\u500b\u5b57\u6bb5\u7684\u503c\u66f4\u6539\u70ba\u5df2\u5b58\u5728\u7684\u552f\u4e00\u503c\u3002<\/li>\n<\/ul>\n<p>\u4f8b\u5982\uff0c\u5047\u8a2d\u6709\u4e00\u500b\u7528\u6236\u8868\uff0c\u5176\u4e2d\u7684\u96fb\u5b50\u90f5\u4ef6\u5b57\u6bb5\u8a2d\u7f6e\u70ba\u552f\u4e00\u7d22\u5f15\u3002\u5982\u679c\u4f60\u5617\u8a66\u63d2\u5165\u4e00\u500b\u5df2\u5b58\u5728\u7684\u96fb\u5b50\u90f5\u4ef6\u5730\u5740\uff0c\u5247\u6703\u89f8\u767c\u932f\u8aa41062\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%a4%ba%e4%be%8b-iqoobVCrHG\">\u932f\u8aa4\u793a\u4f8b<\/h2>\n<pre><code>INSERT INTO users (id, email) VALUES (1, 'example@example.com');\nINSERT INTO users (id, email) VALUES (2, 'example@example.com'); -- \u9019\u88e1\u6703\u5f15\u767c\u932f\u8aa41062\n<\/code><\/pre>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41062-iqoobVCrHG\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41062<\/h2>\n<p>\u4fee\u5fa9\u932f\u8aa41062\u7684\u65b9\u6cd5\u53d6\u6c7a\u65bc\u5177\u9ad4\u60c5\u6cc1\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a-iqoobVCrHG\">1. \u6aa2\u67e5\u6578\u64da<\/h3>\n<p>\u9996\u5148\uff0c\u6aa2\u67e5\u4f60\u8981\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u3002\u78ba\u4fdd\u8a72\u6578\u64da\u4e0d\u6703\u8207\u73fe\u6709\u7684\u552f\u4e00\u7d22\u5f15\u6216\u4e3b\u9375\u885d\u7a81\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u662f\u5426\u5df2\u5b58\u5728\u76f8\u540c\u7684\u689d\u76ee\uff1a<\/p>\n<pre><code>SELECT * FROM users WHERE email = 'example@example.com';\n<\/code><\/pre>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8insert-ignore-iqoobVCrHG\">2. \u4f7f\u7528INSERT IGNORE<\/h3>\n<p>\u5982\u679c\u4f60\u5e0c\u671b\u5728\u63d2\u5165\u6642\u5ffd\u7565\u91cd\u8907\u7684\u689d\u76ee\uff0c\u53ef\u4ee5\u4f7f\u7528INSERT IGNORE\u8a9e\u53e5\u3002\u9019\u6a23\uff0c\u5982\u679c\u63d2\u5165\u7684\u6578\u64da\u5df2\u5b58\u5728\uff0cMySQL\u5c07\u4e0d\u6703\u5831\u932f\uff0c\u800c\u662f\u7c21\u55ae\u5730\u5ffd\u7565\u8a72\u64cd\u4f5c\uff1a<\/p>\n<pre><code>INSERT IGNORE INTO users (id, email) VALUES (2, 'example@example.com');\n<\/code><\/pre>\n<h3 id=\"3-%e4%bd%bf%e7%94%a8on-duplicate-key-update-iqoobVCrHG\">3. \u4f7f\u7528ON DUPLICATE KEY UPDATE<\/h3>\n<p>\u5982\u679c\u4f60\u5e0c\u671b\u5728\u9047\u5230\u91cd\u8907\u689d\u76ee\u6642\u66f4\u65b0\u73fe\u6709\u8a18\u9304\uff0c\u53ef\u4ee5\u4f7f\u7528ON DUPLICATE KEY UPDATE\u8a9e\u53e5\u3002\u9019\u6a23\u53ef\u4ee5\u5728\u63d2\u5165\u6642\u81ea\u52d5\u66f4\u65b0\u5df2\u5b58\u5728\u7684\u8a18\u9304\uff1a<\/p>\n<pre><code>INSERT INTO users (id, email) VALUES (2, 'example@example.com')\nON DUPLICATE KEY UPDATE email = 'example@example.com';\n<\/code><\/pre>\n<h3 id=\"4-%e5%88%aa%e9%99%a4%e6%88%96%e6%9b%b4%e6%96%b0%e7%8f%be%e6%9c%89%e8%a8%98%e9%8c%84-iqoobVCrHG\">4. \u522a\u9664\u6216\u66f4\u65b0\u73fe\u6709\u8a18\u9304<\/h3>\n<p>\u5982\u679c\u4f60\u78ba\u5b9a\u4e0d\u518d\u9700\u8981\u73fe\u6709\u7684\u91cd\u8907\u8a18\u9304\uff0c\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u6216\u66f4\u65b0\u5b83\u5011\u3002\u4f7f\u7528DELETE\u8a9e\u53e5\u522a\u9664\u91cd\u8907\u7684\u689d\u76ee\uff1a<\/p>\n<pre><code>DELETE FROM users WHERE email = 'example@example.com' LIMIT 1;\n<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-iqoobVCrHG\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41062\uff08ER_DUP_ENTRY\uff09\u662f\u7531\u65bc\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u91cd\u8907\u7684\u552f\u4e00\u689d\u76ee\u800c\u5f15\u767c\u7684\u3002\u901a\u904e\u6aa2\u67e5\u6578\u64da\u3001\u4f7f\u7528INSERT IGNORE\u6216ON DUPLICATE KEY UPDATE\u8a9e\u53e5\uff0c\u6216\u522a\u9664\u73fe\u6709\u8a18\u9304\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u4e86\u89e3\u5982\u4f55\u8655\u7406\u9019\u4e9b\u932f\u8aa4\u5c0d\u65bc\u7dad\u8b77\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u4e14\u9ad8\u6548\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u60a8\u7684\u9700\u6c42\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u7db2\u7ad9\u6258\u7ba1\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u5353\u8d8a\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b78\u7fd2\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41062\uff08ER_DUP_ENTRY\uff09\uff0c\u89e3\u6c7a\u91cd\u8907\u689d\u76ee\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\u8207\u7a69\u5b9a\u6027\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-177145","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177145","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=177145"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177145\/revisions"}],"predecessor-version":[{"id":177146,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177145\/revisions\/177146"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}