{"id":178818,"date":"2024-11-08T21:09:17","date_gmt":"2024-11-08T13:09:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/178818\/"},"modified":"2024-11-08T21:09:18","modified_gmt":"2024-11-08T13:09:18","slug":"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a23505-unique_violation%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/178818\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a23505 &#8211; unique_violation\uff1f"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e4%bf%ae%e5%be%a9postgresql%e9%8c%af%e8%aa%a4%e4%bb%a3%e7%a2%bc%ef%bc%9a23505-unique_violation-ITwFvMcGAZ\">\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc\uff1a23505 &#8211; unique_violation<\/h1>\n<p>\u5728\u4f7f\u7528PostgreSQL\u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u5c31\u662f\u932f\u8aa4\u4ee3\u78bc23505\uff0c\u9019\u8868\u793a\u767c\u751f\u4e86unique_violation\uff08\u552f\u4e00\u6027\u9055\u898f\uff09\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u4e00\u689d\u8a18\u9304\u6642\uff0c\u8a72\u8a18\u9304\u7684\u67d0\u500b\u5b57\u6bb5\u9055\u53cd\u4e86\u552f\u4e00\u6027\u7d04\u675f\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u53ca\u5176\u4fee\u5fa9\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%afunique_violation%ef%bc%9f-ITwFvMcGAZ\">\u4ec0\u9ebc\u662funique_violation\uff1f<\/h2>\n<p>\u5728PostgreSQL\u4e2d\uff0c\u552f\u4e00\u6027\u7d04\u675f\u662f\u4e00\u7a2e\u78ba\u4fdd\u6578\u64da\u8868\u4e2d\u67d0\u4e00\u5217\u6216\u591a\u5217\u7684\u503c\u662f\u552f\u4e00\u7684\u7d04\u675f\u3002\u7576\u4f60\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u4e00\u689d\u8a18\u9304\uff0c\u4f7f\u5f97\u8a72\u8a18\u9304\u7684\u552f\u4e00\u6027\u7d04\u675f\u88ab\u9055\u53cd\u6642\uff0cPostgreSQL\u6703\u8fd4\u56de\u932f\u8aa4\u4ee3\u78bc23505\u3002\u9019\u901a\u5e38\u767c\u751f\u5728\u4ee5\u4e0b\u60c5\u6cc1\uff1a<\/p>\n<ul>\n<li>\u63d2\u5165\u4e00\u689d\u65b0\u8a18\u9304\uff0c\u5176\u4e3b\u9375\u6216\u552f\u4e00\u7d22\u5f15\u7684\u503c\u5df2\u5b58\u5728\u65bc\u6578\u64da\u8868\u4e2d\u3002<\/li>\n<li>\u66f4\u65b0\u4e00\u689d\u8a18\u9304\uff0c\u4f7f\u5f97\u5176\u4e3b\u9375\u6216\u552f\u4e00\u7d22\u5f15\u7684\u503c\u8207\u5176\u4ed6\u5df2\u5b58\u5728\u7684\u8a18\u9304\u885d\u7a81\u3002<\/li>\n<\/ul>\n<h2 id=\"%e5%a6%82%e4%bd%95%e8%ad%98%e5%88%a5%e9%8c%af%e8%aa%a4%e6%ba%90-ITwFvMcGAZ\">\u5982\u4f55\u8b58\u5225\u932f\u8aa4\u6e90<\/h2>\n<p>\u8981\u4fee\u5fa9unique_violation\u932f\u8aa4\uff0c\u9996\u5148\u9700\u8981\u8b58\u5225\u5c0e\u81f4\u932f\u8aa4\u7684\u5177\u9ad4\u539f\u56e0\u3002\u53ef\u4ee5\u901a\u904e\u4ee5\u4e0b\u6b65\u9a5f\u4f86\u9032\u884c\u6392\u67e5\uff1a<\/p>\n<ol>\n<li><strong>\u6aa2\u67e5\u932f\u8aa4\u4fe1\u606f\uff1a<\/strong>\u7576PostgreSQL\u8fd4\u56de\u932f\u8aa4\u4ee3\u78bc23505\u6642\uff0c\u901a\u5e38\u6703\u9644\u5e36\u8a73\u7d30\u7684\u932f\u8aa4\u4fe1\u606f\uff0c\u6307\u51fa\u9055\u898f\u7684\u7d04\u675f\u540d\u7a31\u3002\u9019\u53ef\u4ee5\u5e6b\u52a9\u4f60\u5feb\u901f\u5b9a\u4f4d\u554f\u984c\u3002<\/li>\n<li><strong>\u67e5\u8a62\u6578\u64da\u8868\uff1a<\/strong>\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u6578\u64da\u8868\u4e2d\u662f\u5426\u5df2\u5b58\u5728\u76f8\u540c\u7684\u503c\u3002\u4f8b\u5982\uff0c\u5982\u679c\u4f60\u5728\u63d2\u5165\u4e00\u689d\u65b0\u8a18\u9304\u6642\u9047\u5230\u932f\u8aa4\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u67e5\u8a62\u4f86\u6aa2\u67e5\u8a72\u503c\u662f\u5426\u5df2\u5b58\u5728\uff1a<\/li>\n<pre><code>SELECT * FROM your_table WHERE unique_column = 'value';<\/code><\/pre>\n<li><strong>\u6aa2\u67e5\u61c9\u7528\u908f\u8f2f\uff1a<\/strong>\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7684\u908f\u8f2f\u4e0d\u6703\u5c0e\u81f4\u91cd\u8907\u63d2\u5165\u6216\u66f4\u65b0\u3002\u4f8b\u5982\uff0c\u6aa2\u67e5\u662f\u5426\u6709\u591a\u500b\u8acb\u6c42\u540c\u6642\u5617\u8a66\u63d2\u5165\u76f8\u540c\u7684\u6578\u64da\u3002<\/li>\n<\/ol>\n<h2 id=\"%e4%bf%ae%e5%be%a9%e6%96%b9%e6%b3%95-ITwFvMcGAZ\">\u4fee\u5fa9\u65b9\u6cd5<\/h2>\n<p>\u4e00\u65e6\u78ba\u5b9a\u4e86\u932f\u8aa4\u7684\u4f86\u6e90\uff0c\u63a5\u4e0b\u4f86\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u5e7e\u7a2e\u65b9\u6cd5\u4f86\u4fee\u5fa9\u554f\u984c\uff1a<\/p>\n<ul>\n<li><strong>\u4fee\u6539\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\uff1a<\/strong>\u78ba\u4fdd\u63d2\u5165\u6216\u66f4\u65b0\u7684\u6578\u64da\u4e0d\u6703\u8207\u73fe\u6709\u6578\u64da\u885d\u7a81\u3002\u4f8b\u5982\uff0c\u70ba\u65b0\u8a18\u9304\u751f\u6210\u4e00\u500b\u552f\u4e00\u7684\u4e3b\u9375\u503c\u3002<\/li>\n<li><strong>\u4f7f\u7528UPSERT\u8a9e\u53e5\uff1a<\/strong>\u5982\u679c\u4f60\u5e0c\u671b\u5728\u8a18\u9304\u5df2\u5b58\u5728\u6642\u66f4\u65b0\u5b83\uff0c\u53ef\u4ee5\u4f7f\u7528PostgreSQL\u7684UPSERT\u8a9e\u53e5\uff08INSERT &#8230; ON CONFLICT\uff09\u3002\u9019\u6a23\u53ef\u4ee5\u907f\u514dunique_violation\u932f\u8aa4\u3002\u4f8b\u5982\uff1a<\/li>\n<pre><code>INSERT INTO your_table (unique_column, other_column) VALUES ('value', 'other_value')\nON CONFLICT (unique_column) DO UPDATE SET other_column = 'other_value';<\/code><\/pre>\n<li><strong>\u522a\u9664\u6216\u66f4\u65b0\u885d\u7a81\u7684\u8a18\u9304\uff1a<\/strong>\u5982\u679c\u4e0d\u518d\u9700\u8981\u885d\u7a81\u7684\u8a18\u9304\uff0c\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u6216\u66f4\u65b0\u5b83\u5011\uff0c\u4ee5\u4fbf\u70ba\u65b0\u6578\u64da\u9a30\u51fa\u7a7a\u9593\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-ITwFvMcGAZ\">\u7e3d\u7d50<\/h2>\n<p>PostgreSQL\u7684\u932f\u8aa4\u4ee3\u78bc23505 &#8211; unique_violation\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u7531\u65bc\u6578\u64da\u7684\u552f\u4e00\u6027\u7d04\u675f\u88ab\u9055\u53cd\u800c\u5f15\u8d77\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u932f\u8aa4\u4fe1\u606f\u3001\u67e5\u8a62\u6578\u64da\u8868\u4ee5\u53ca\u6aa2\u67e5\u61c9\u7528\u908f\u8f2f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u8b58\u5225\u554f\u984c\u7684\u6839\u6e90\u3002\u6839\u64da\u5177\u9ad4\u60c5\u6cc1\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u9078\u64c7\u4fee\u6539\u6578\u64da\u3001\u4f7f\u7528UPSERT\u8a9e\u53e5\u6216\u522a\u9664\u885d\u7a81\u7684\u8a18\u9304\u4f86\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002<\/p>\n<p>\u5982\u679c\u60a8\u6b63\u5728\u5c0b\u627e\u7a69\u5b9a\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0cServer.HK \u63d0\u4f9b\u591a\u7a2e\u9078\u64c7\uff0c\u6eff\u8db3\u4e0d\u540c\u9700\u6c42\u7684\u5ba2\u6236\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7ba1\u7406\u9084\u662f\u61c9\u7528\u90e8\u7f72\uff0c\u6211\u5011\u7684 <a href=\"https:\/\/server.hk\">\u4f3a\u670d\u5668<\/a> \u90fd\u80fd\u70ba\u60a8\u63d0\u4f9b\u53ef\u9760\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4e86\u89e3\u5982\u4f55\u4fee\u5fa9PostgreSQL\u932f\u8aa4\u4ee3\u78bc23505\uff08unique_violation\uff09\uff0c\u89e3\u6c7a\u6578\u64da\u91cd\u8907\u554f\u984c\uff0c\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\u548c\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-178818","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178818","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=178818"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178818\/revisions"}],"predecessor-version":[{"id":178819,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/178818\/revisions\/178819"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=178818"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=178818"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=178818"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}