{"id":177125,"date":"2024-11-08T13:33:19","date_gmt":"2024-11-08T05:33:19","guid":{"rendered":"https:\/\/server.hk\/cnblog\/177125\/"},"modified":"2024-11-08T13:33:20","modified_gmt":"2024-11-08T05:33:20","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41052-sql%e7%8b%80%e6%85%8b%ef%bc%9a23000%ef%bc%88er_non_uniq_error%ef%bc%89%e5%9c%a8s%e4%b8%ad%e7%9a%84%e5%88%97%ef%bc%85s","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/177125\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41052 &#8211; SQL\u72c0\u614b\uff1a23000\uff08ER_NON_UNIQ_ERROR\uff09\u5728%s\u4e2d\u7684\u5217\u201c\uff05s\u201d\u4e0d\u660e\u78ba"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9mysql%e9%8c%af%e8%aa%a41052-sql%e7%8b%80%e6%85%8b%ef%bc%9a23000%ef%bc%88er_non_uniq_error%ef%bc%89%e5%9c%a8s%e4%b8%ad%e7%9a%84%e5%88%97%ef%bc%85s-HJvNLrJiDg\">\u5982\u4f55\u4fee\u5fa9MySQL\u932f\u8aa41052 &#8211; SQL\u72c0\u614b\uff1a23000\uff08ER_NON_UNIQ_ERROR\uff09\u5728%s\u4e2d\u7684\u5217\u201c\uff05s\u201d\u4e0d\u660e\u78ba<\/h1>\n<p>\u5728\u4f7f\u7528MySQL\u9032\u884c\u6578\u64da\u5eab\u64cd\u4f5c\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc1052\uff0c\u8a72\u932f\u8aa4\u901a\u5e38\u4f34\u96a8\u8457SQL\u72c0\u614b23000\uff0c\u8868\u793a\u5728\u67e5\u8a62\u4e2d\u51fa\u73fe\u4e86\u4e0d\u660e\u78ba\u7684\u5217\u540d\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u6d89\u53ca\u591a\u500b\u8868\u7684\u806f\u63a5\u67e5\u8a62\u4e2d\uff0c\u7576\u67e5\u8a62\u4e2d\u6709\u591a\u500b\u8868\u5305\u542b\u540c\u540d\u7684\u5217\u6642\uff0cMySQL\u7121\u6cd5\u78ba\u5b9a\u61c9\u8a72\u4f7f\u7528\u54ea\u4e00\u500b\u5217\uff0c\u5f9e\u800c\u5c0e\u81f4\u932f\u8aa4\u3002<\/p>\n<h2 id=\"%e9%8c%af%e8%aa%a4%e7%9a%84%e5%8e%9f%e5%9b%a0-HJvNLrJiDg\">\u932f\u8aa4\u7684\u539f\u56e0<\/h2>\n<p>\u932f\u8aa41052\u7684\u4e3b\u8981\u539f\u56e0\u662fSQL\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u4e0d\u660e\u78ba\u7684\u5217\u540d\u3002\u7576\u4f60\u5728\u67e5\u8a62\u4e2d\u4f7f\u7528\u4e86\u591a\u500b\u8868\uff0c\u4e26\u4e14\u9019\u4e9b\u8868\u4e2d\u6709\u76f8\u540c\u540d\u7a31\u7684\u5217\u6642\uff0cMySQL\u7121\u6cd5\u78ba\u5b9a\u4f60\u6240\u6307\u7684\u5177\u9ad4\u5217\u3002\u4f8b\u5982\uff0c\u8003\u616e\u4ee5\u4e0b\u67e5\u8a62\uff1a<\/p>\n<pre><code>SELECT id, name FROM users JOIN orders ON users.id = orders.user_id;<\/code><\/pre>\n<p>\u5982\u679c\u5728<code>users<\/code>\u548c<code>orders<\/code>\u8868\u4e2d\u90fd\u6709\u4e00\u500b\u540d\u70ba<code>id<\/code>\u7684\u5217\uff0c\u5247\u57f7\u884c\u9019\u500b\u67e5\u8a62\u6642\u5c31\u6703\u51fa\u73fe\u932f\u8aa41052\uff0c\u56e0\u70baMySQL\u7121\u6cd5\u78ba\u5b9a\u4f60\u60f3\u8981\u7684<code>id<\/code>\u662f\u4f86\u81ea\u54ea\u4e00\u500b\u8868\u3002<\/p>\n<h2 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9%e9%8c%af%e8%aa%a41052-HJvNLrJiDg\">\u5982\u4f55\u4fee\u5fa9\u932f\u8aa41052<\/h2>\n<p>\u8981\u4fee\u5fa9\u9019\u500b\u932f\u8aa4\uff0c\u6700\u6709\u6548\u7684\u65b9\u6cd5\u662f\u660e\u78ba\u6307\u5b9a\u5217\u7684\u4f86\u6e90\u3002\u9019\u53ef\u4ee5\u901a\u904e\u5728\u5217\u540d\u524d\u52a0\u4e0a\u8868\u7684\u5225\u540d\u6216\u8868\u540d\u4f86\u5be6\u73fe\u3002\u4ee5\u4e0b\u662f\u4fee\u5fa9\u5f8c\u7684\u67e5\u8a62\u793a\u4f8b\uff1a<\/p>\n<pre><code>SELECT users.id AS user_id, users.name FROM users JOIN orders ON users.id = orders.user_id;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u4f7f\u7528\u4e86<code>users.id AS user_id<\/code>\u4f86\u660e\u78ba\u6307\u5b9a<code>id<\/code>\u5217\u7684\u4f86\u6e90\uff0c\u4e26\u4e14\u7d66\u5b83\u4e00\u500b\u5225\u540d<code>user_id<\/code>\uff0c\u9019\u6a23\u5c31\u907f\u514d\u4e86\u4e0d\u660e\u78ba\u7684\u60c5\u6cc1\u3002<\/p>\n<h2 id=\"%e4%bd%bf%e7%94%a8%e5%88%a5%e5%90%8d%e7%9a%84%e5%a5%bd%e8%99%95-HJvNLrJiDg\">\u4f7f\u7528\u5225\u540d\u7684\u597d\u8655<\/h2>\n<p>\u4f7f\u7528\u5225\u540d\u4e0d\u50c5\u53ef\u4ee5\u89e3\u6c7a\u932f\u8aa41052\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u7684\u53ef\u8b80\u6027\u3002\u7576\u67e5\u8a62\u6d89\u53ca\u591a\u500b\u8868\u6642\uff0c\u4f7f\u7528\u5225\u540d\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u6e05\u695a\u5730\u7406\u89e3\u6bcf\u500b\u5217\u7684\u4f86\u6e90\uff0c\u5f9e\u800c\u6e1b\u5c11\u932f\u8aa4\u7684\u53ef\u80fd\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>SELECT u.id AS user_id, o.id AS order_id, u.name FROM users u JOIN orders o ON u.id = o.user_id;<\/code><\/pre>\n<p>\u5728\u9019\u500b\u67e5\u8a62\u4e2d\uff0c\u6211\u5011\u70ba<code>users<\/code>\u8868\u548c<code>orders<\/code>\u8868\u5206\u5225\u4f7f\u7528\u4e86\u5225\u540d<code>u<\/code>\u548c<code>o<\/code>\uff0c\u9019\u6a23\u5728\u67e5\u8a62\u4e2d\u5f15\u7528\u5217\u6642\u5c31\u66f4\u52a0\u7c21\u6f54\u660e\u4e86\u3002<\/p>\n<h2 id=\"%e5%85%b6%e4%bb%96%e6%b3%a8%e6%84%8f%e4%ba%8b%e9%a0%85-HJvNLrJiDg\">\u5176\u4ed6\u6ce8\u610f\u4e8b\u9805<\/h2>\n<ul>\n<li>\u5728\u9032\u884c\u8907\u96dc\u67e5\u8a62\u6642\uff0c\u5efa\u8b70\u59cb\u7d42\u4f7f\u7528\u8868\u540d\u6216\u5225\u540d\u4f86\u5f15\u7528\u5217\uff0c\u4ee5\u907f\u514d\u4e0d\u5fc5\u8981\u7684\u932f\u8aa4\u3002<\/li>\n<li>\u5b9a\u671f\u6aa2\u67e5\u6578\u64da\u5eab\u7d50\u69cb\uff0c\u78ba\u4fdd\u4e0d\u6703\u56e0\u70ba\u5217\u540d\u91cd\u8907\u800c\u5c0e\u81f4\u67e5\u8a62\u932f\u8aa4\u3002<\/li>\n<li>\u5728\u958b\u767c\u904e\u7a0b\u4e2d\uff0c\u4f7f\u7528SQL\u8abf\u8a66\u5de5\u5177\u4f86\u5e6b\u52a9\u8b58\u5225\u548c\u4fee\u5fa9\u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-HJvNLrJiDg\">\u7e3d\u7d50<\/h2>\n<p>MySQL\u932f\u8aa41052\u901a\u5e38\u662f\u7531\u65bc\u67e5\u8a62\u4e2d\u5b58\u5728\u4e0d\u660e\u78ba\u7684\u5217\u540d\u6240\u5f15\u8d77\u7684\u3002\u901a\u904e\u660e\u78ba\u6307\u5b9a\u5217\u7684\u4f86\u6e90\uff0c\u4f7f\u7528\u8868\u540d\u6216\u5225\u540d\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u500b\u554f\u984c\u3002\u9019\u4e0d\u50c5\u80fd\u5920\u4fee\u5fa9\u932f\u8aa4\uff0c\u9084\u80fd\u63d0\u9ad8\u67e5\u8a62\u7684\u53ef\u8b80\u6027\u548c\u7dad\u8b77\u6027\u3002\u5c0d\u65bc\u4f7f\u7528<code>VPS<\/code>\u6216<code>\u9999\u6e2f\u4f3a\u670d\u5668<\/code>\u9032\u884c\u6578\u64da\u5eab\u7ba1\u7406\u7684\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u5982\u4f55\u8655\u7406\u9019\u985e\u932f\u8aa4\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u591a\u6709\u95dc<code>VPS<\/code>\u6216<code>\u9999\u6e2f\u4f3a\u670d\u5668<\/code>\u7684\u8cc7\u8a0a\uff0c\u8acb\u8a2a\u554f\u6211\u5011\u7684\u7db2\u7ad9 <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4fee\u5fa9MySQL\u932f\u8aa41052\u7684\u65b9\u6cd5\uff0c\u89e3\u6c7aSQL\u72c0\u614b23000\u4e2d\u7684\u4e0d\u660e\u78ba\u5217\u554f\u984c\uff0c\u63d0\u5347\u6578\u64da\u67e5\u8a62\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-177125","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177125","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=177125"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177125\/revisions"}],"predecessor-version":[{"id":177126,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/177125\/revisions\/177126"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=177125"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=177125"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=177125"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}