{"id":21423,"date":"2024-01-02T09:08:26","date_gmt":"2024-01-02T09:08:26","guid":{"rendered":"https:\/\/server.hk\/blog\/21423\/"},"modified":"2024-11-14T10:34:41","modified_gmt":"2024-11-14T02:34:41","slug":"how-to-fix-postgresql-error-code-42p07-duplicate_table","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21423\/","title":{"rendered":"How to fix PostgreSQL Error Code: 42P07 &#8211; duplicate_table"},"content":{"rendered":"<h1 id=\"how-to-fix-postgresql-error-code-42p07-duplicate_table-UHPiwcRlRA\">\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P07 &#8211; duplicate_table<\/h1>\n<p>PostgreSQL \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u3002\u7136\u800c\uff0c\u50cf\u5176\u4ed6\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u4e5f\u53ef\u80fd\u9047\u5230\u6703\u5e72\u64fe\u6b63\u5e38\u904b\u4f5c\u7684\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b\u932f\u8aa4\u662f PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P07 &#8211; duplicate_table\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u6b64\u932f\u8aa4\u7684\u6210\u56e0\uff0c\u4e26\u63d0\u4f9b\u9010\u6b65\u7684\u4fee\u5fa9\u6307\u5c0e\u3002<\/p>\n<h2 id=\"understanding-the-error-UHPiwcRlRA\">\u7406\u89e3\u932f\u8aa4<\/h2>\n<p>PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P07 &#8211; duplicate_table \u767c\u751f\u5728\u60a8\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5728\u7684\u8868\u6642\u3002\u6b64\u932f\u8aa4\u662f\u70ba\u4e86\u9632\u6b62\u5275\u5efa\u91cd\u8907\u7684\u8868\uff0c\u56e0\u70ba\u9019\u53ef\u80fd\u5c0e\u81f4\u6578\u64da\u5b8c\u6574\u6027\u554f\u984c\u548c\u885d\u7a81\u3002<\/p>\n<h2 id=\"possible-causes-UHPiwcRlRA\">\u53ef\u80fd\u7684\u6210\u56e0<\/h2>\n<p>\u60a8\u53ef\u80fd\u6703\u9047\u5230\u6b64\u932f\u8aa4\u7684\u539f\u56e0\u6709\u5e7e\u500b\uff1a<\/p>\n<ul>\n<li><strong>\u8868\u5df2\u5b58\u5728\uff1a<\/strong>\u6700\u5e38\u898b\u7684\u539f\u56e0\u662f\u6578\u64da\u5eab\u4e2d\u5df2\u5b58\u5728\u540c\u540d\u7684\u8868\u3002\u5982\u679c\u60a8\u4e0d\u5c0f\u5fc3\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u5728\u4f7f\u7528\u4e2d\u7684\u8868\uff0c\u5247\u6703\u767c\u751f\u6b64\u60c5\u6cc1\u3002<\/li>\n<li><strong>\u67b6\u69cb\u885d\u7a81\uff1a<\/strong>\u5982\u679c\u60a8\u5728\u6578\u64da\u5eab\u4e2d\u4f7f\u7528\u591a\u500b\u67b6\u69cb\uff0c\u60a8\u5617\u8a66\u5275\u5efa\u7684\u8868\u540d\u53ef\u80fd\u5df2\u5728\u4e0d\u540c\u7684\u67b6\u69cb\u4e2d\u5b58\u5728\u3002<\/li>\n<li><strong>\u5927\u5c0f\u5beb\u654f\u611f\uff1a<\/strong>PostgreSQL \u5728\u8868\u540d\u65b9\u9762\u662f\u5927\u5c0f\u5beb\u654f\u611f\u7684\u3002\u5982\u679c\u60a8\u6709\u4e00\u500b\u540d\u70ba &#8220;mytable&#8221; \u7684\u8868\uff0c\u4e26\u5617\u8a66\u5275\u5efa\u53e6\u4e00\u500b\u540d\u70ba &#8220;MyTable&#8221; \u7684\u8868\uff0c\u5247\u6703\u5c0e\u81f4 duplicate_table \u932f\u8aa4\u3002<\/li>\n<\/ul>\n<h2 id=\"fixing-the-error-UHPiwcRlRA\">\u4fee\u5fa9\u932f\u8aa4<\/h2>\n<p>\u8981\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P07 &#8211; duplicate_table\uff0c\u8acb\u9075\u5faa\u4ee5\u4e0b\u6b65\u9a5f\uff1a<\/p>\n<h3 id=\"step-1-identify-the-existing-table-UHPiwcRlRA\">\u6b65\u9a5f 1\uff1a\u8b58\u5225\u73fe\u6709\u8868<\/h3>\n<p>\u9996\u5148\uff0c\u60a8\u9700\u8981\u8b58\u5225\u540c\u540d\u7684\u73fe\u6709\u8868\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u6aa2\u67e5\u8a72\u8868\u662f\u5426\u5df2\u5b58\u5728\uff1a<\/p>\n<pre><code>SELECT * FROM pg_tables WHERE tablename = 'your_table_name';<\/code><\/pre>\n<p>\u5c07 &#8216;your_table_name&#8217; \u66ff\u63db\u70ba\u60a8\u5617\u8a66\u5275\u5efa\u7684\u8868\u540d\u3002\u5982\u679c\u67e5\u8a62\u8fd4\u56de\u4efb\u4f55\u7d50\u679c\uff0c\u5247\u8868\u793a\u5df2\u5b58\u5728\u540c\u540d\u7684\u8868\u3002<\/p>\n<h3 id=\"step-2-rename-or-drop-the-existing-table-UHPiwcRlRA\">\u6b65\u9a5f 2\uff1a\u91cd\u65b0\u547d\u540d\u6216\u522a\u9664\u73fe\u6709\u8868<\/h3>\n<p>\u5982\u679c\u8868\u5df2\u5b58\u5728\u4e14\u60a8\u4e0d\u518d\u9700\u8981\u5b83\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u547d\u4ee4\u5c07\u5176\u522a\u9664\uff1a<\/p>\n<pre><code>DROP TABLE your_table_name;<\/code><\/pre>\n<p>\u5c07 &#8216;your_table_name&#8217; \u66ff\u63db\u70ba\u73fe\u6709\u8868\u7684\u540d\u7a31\u3002\u4f7f\u7528\u6b64\u547d\u4ee4\u6642\u8acb\u8b39\u614e\uff0c\u56e0\u70ba\u5b83\u6703\u6c38\u4e45\u522a\u9664\u8a72\u8868\u53ca\u5176\u6240\u6709\u6578\u64da\u3002<\/p>\n<p>\u5982\u679c\u60a8\u5e0c\u671b\u4fdd\u7559\u73fe\u6709\u8868\u4f46\u60f3\u66f4\u6539\u540d\u7a31\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 RENAME \u547d\u4ee4\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name RENAME TO new_table_name;<\/code><\/pre>\n<p>\u5c07 &#8216;your_table_name&#8217; \u66ff\u63db\u70ba\u73fe\u6709\u8868\u7684\u540d\u7a31\uff0c\u4e26\u5c07 &#8216;new_table_name&#8217; \u66ff\u63db\u70ba\u6240\u9700\u7684\u65b0\u540d\u7a31\u3002<\/p>\n<h3 id=\"step-3-retry-creating-the-table-UHPiwcRlRA\">\u6b65\u9a5f 3\uff1a\u91cd\u8a66\u5275\u5efa\u8868<\/h3>\n<p>\u4e00\u65e6\u60a8\u901a\u904e\u522a\u9664\u6216\u91cd\u65b0\u547d\u540d\u73fe\u6709\u8868\u4f86\u89e3\u6c7a\u885d\u7a81\uff0c\u60a8\u53ef\u4ee5\u91cd\u8a66\u5275\u5efa\u6240\u9700\u540d\u7a31\u7684\u8868\u3002\u5982\u679c\u6c92\u6709\u5176\u4ed6\u885d\u7a81\uff0c\u932f\u8aa4\u61c9\u4e0d\u518d\u767c\u751f\u3002<\/p>\n<h2 id=\"summary-UHPiwcRlRA\">\u7e3d\u7d50<\/h2>\n<p>\u7e3d\u4e4b\uff0cPostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42P07 &#8211; duplicate_table \u767c\u751f\u5728\u60a8\u5617\u8a66\u5275\u5efa\u4e00\u500b\u5df2\u5728\u6578\u64da\u5eab\u4e2d\u5b58\u5728\u7684\u8868\u6642\u3002\u6b64\u932f\u8aa4\u53ef\u4ee5\u901a\u904e\u8b58\u5225\u73fe\u6709\u8868\u3001\u522a\u9664\u6216\u91cd\u65b0\u547d\u540d\u5b83\uff0c\u7136\u5f8c\u91cd\u8a66\u8868\u5275\u5efa\u4f86\u4fee\u5fa9\u3002\u5982\u679c\u60a8\u9047\u5230\u6b64\u932f\u8aa4\uff0c\u8acb\u6309\u7167\u672c\u6587\u4e2d\u6982\u8ff0\u7684\u6b65\u9a5f\u9032\u884c\u89e3\u6c7a\u3002<\/p>\n<p>\u5982\u9700\u53ef\u9760\u548c\u9ad8\u6548\u7684 VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e <a href=\"https:\/\/server.hk\">Server.HK<\/a>\u3002\u6211\u5011\u7684\u9999\u6e2f VPS \u8a17\u7ba1\u670d\u52d9\u65e8\u5728\u6eff\u8db3\u4f01\u696d\u548c\u500b\u4eba\u7684\u9700\u6c42\uff0c\u63d0\u4f9b\u5353\u8d8a\u7684\u6027\u80fd\u548c\u53ef\u9760\u6027\u3002\u4eca\u5929\u5c31\u806f\u7e6b\u6211\u5011\uff0c\u4e86\u89e3\u66f4\u591a\u6709\u95dc\u6211\u5011\u7684\u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5982\u4f55\u4fee\u5fa9 PostgreSQL &#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-21423","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21423","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"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=21423"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21423\/revisions"}],"predecessor-version":[{"id":24067,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21423\/revisions\/24067"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}