{"id":21402,"date":"2024-01-02T08:47:22","date_gmt":"2024-01-02T08:47:22","guid":{"rendered":"https:\/\/server.hk\/blog\/21402\/"},"modified":"2024-11-14T10:35:06","modified_gmt":"2024-11-14T02:35:06","slug":"how-to-fix-postgresql-error-code-42830-invalid_foreign_key","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21402\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42830 – invalid_foreign_key"},"content":{"rendered":"

\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a42830 – invalid_foreign_key<\/h1>\n

PostgreSQL \u662f\u4e00\u500b\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u4fc2\u578b\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u7528\u65bc\u5168\u7403\u7684\u958b\u767c\u4eba\u54e1\u548c\u7d44\u7e54\u3002\u7136\u800c\uff0c\u50cf\u6240\u6709\u8edf\u4ef6\u4e00\u6a23\uff0c\u5b83\u4e26\u975e\u6c92\u6709\u932f\u8aa4\u548c\u554f\u984c\u3002PostgreSQL \u7528\u6236\u53ef\u80fd\u6703\u9047\u5230\u7684\u4e00\u500b\u5e38\u898b\u932f\u8aa4\u662f “42830 – invalid_foreign_key” \u932f\u8aa4\u4ee3\u78bc\u3002\u5728\u672c\u6587\u4e2d\uff0c\u6211\u5011\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u542b\u7fa9\u53ca\u5176\u89e3\u6c7a\u65b9\u6cd5\u3002<\/p>\n

\u7576\u60a8\u5728 PostgreSQL \u4e2d\u9047\u5230 “42830 – invalid_foreign_key” \u932f\u8aa4\u4ee3\u78bc\u6642\uff0c\u9019\u8868\u793a\u5916\u9375\u7d04\u675f\u5b58\u5728\u554f\u984c\u3002\u5916\u9375\u7d04\u675f\u662f\u4e00\u689d\u898f\u5247\uff0c\u7528\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u5b8c\u6574\u6027\uff0c\u901a\u904e\u5f37\u5236\u7dad\u8b77\u8868\u4e4b\u9593\u7684\u53c3\u7167\u5b8c\u6574\u6027\u4f86\u5be6\u73fe\u3002\u5b83\u78ba\u4fdd\u4e00\u500b\u8868\u4e2d\u7684\u5217\uff08\u6216\u4e00\u7d44\u5217\uff09\u7684\u503c\u8207\u53e6\u4e00\u500b\u8868\u7684\u4e3b\u9375\u6216\u552f\u4e00\u7d04\u675f\u4e2d\u7684\u503c\u76f8\u5339\u914d\u3002<\/p>\n

\u4ee5\u4e0b\u662f\u53ef\u80fd\u5c0e\u81f4\u60a8\u9047\u5230\u6b64\u932f\u8aa4\u7684\u4e00\u4e9b\u539f\u56e0\uff1a<\/p>\n

    \n
  1. \u6578\u64da\u4e0d\u4e00\u81f4\uff1a<\/strong>\u5982\u679c\u5916\u9375\u5217\u4e2d\u7684\u6578\u64da\u8207\u88ab\u53c3\u8003\u8868\u7684\u4e3b\u9375\u6216\u552f\u4e00\u7d04\u675f\u4e2d\u7684\u4efb\u4f55\u503c\u4e0d\u5339\u914d\uff0c\u5247\u53ef\u80fd\u6703\u51fa\u73fe\u6b64\u932f\u8aa4\u3002\u9019\u53ef\u80fd\u767c\u751f\u5728\u6578\u64da\u88ab\u4fee\u6539\u6216\u522a\u9664\u800c\u672a\u66f4\u65b0\u5916\u9375\u5f15\u7528\u7684\u60c5\u6cc1\u4e0b\u3002<\/li>\n
  2. \u5916\u9375\u5b9a\u7fa9\u4e0d\u6b63\u78ba\uff1a<\/strong>\u5982\u679c\u5916\u9375\u7d04\u675f\u7684\u5b9a\u7fa9\u4e0d\u6b63\u78ba\uff0c\u4e5f\u53ef\u80fd\u6703\u5c0e\u81f4\u6b64\u932f\u8aa4\u3002\u5982\u679c\u5f15\u7528\u8868\u548c\u88ab\u5f15\u7528\u8868\u4e4b\u9593\u7684\u5217\u985e\u578b\u6216\u540d\u7a31\u4e0d\u5339\u914d\uff0c\u5c31\u6703\u767c\u751f\u9019\u7a2e\u60c5\u6cc1\u3002<\/li>\n<\/ol>\n

    \u65e2\u7136\u6211\u5011\u4e86\u89e3\u4e86 “42830 – invalid_foreign_key” \u932f\u8aa4\u7684\u53ef\u80fd\u539f\u56e0\uff0c\u8b93\u6211\u5011\u4f86\u63a2\u8a0e\u4e00\u4e9b\u89e3\u6c7a\u65b9\u6cd5\uff1a<\/p>\n

      \n
    1. \u6aa2\u67e5\u6578\u64da\u4e00\u81f4\u6027\uff1a<\/strong>\u9996\u5148\u6aa2\u67e5\u5916\u9375\u5217\u4e2d\u7684\u6578\u64da\uff0c\u78ba\u4fdd\u5b83\u8207\u88ab\u53c3\u8003\u8868\u7684\u4e3b\u9375\u6216\u552f\u4e00\u7d04\u675f\u4e2d\u7684\u503c\u76f8\u7b26\u3002\u5982\u679c\u5b58\u5728\u4e0d\u4e00\u81f4\uff0c\u60a8\u9700\u8981\u76f8\u61c9\u5730\u66f4\u65b0\u6216\u522a\u9664\u6578\u64da\u3002<\/li>\n
    2. \u9a57\u8b49\u5916\u9375\u5b9a\u7fa9\uff1a<\/strong>\u4ed4\u7d30\u6aa2\u67e5\u5916\u9375\u7d04\u675f\u7684\u5b9a\u7fa9\uff0c\u4ee5\u78ba\u4fdd\u5176\u6e96\u78ba\u7121\u8aa4\u3002\u78ba\u4fdd\u5f15\u7528\u8868\u548c\u88ab\u5f15\u7528\u8868\u4e4b\u9593\u7684\u5217\u985e\u578b\u548c\u540d\u7a31\u5339\u914d\u3002\u5982\u679c\u5b58\u5728\u4efb\u4f55\u5dee\u7570\uff0c\u8acb\u76f8\u61c9\u5730\u4fee\u6539\u7d04\u675f\u3002<\/li>\n
    3. \u4f7f\u7528 CASCADE \u6216 SET NULL \u64cd\u4f5c\uff1a<\/strong>\u5982\u679c\u60a8\u9700\u8981\u522a\u9664\u6216\u66f4\u65b0\u88ab\u53c3\u8003\u8868\u4e2d\u7684\u6578\u64da\uff0c\u53ef\u4ee5\u4f7f\u7528 CASCADE \u6216 SET NULL \u64cd\u4f5c\u81ea\u52d5\u66f4\u65b0\u6216\u522a\u9664\u76f8\u61c9\u7684\u5916\u9375\u5f15\u7528\u3002\u9019\u6709\u52a9\u65bc\u7dad\u8b77\u6578\u64da\u5b8c\u6574\u6027\u4e26\u9632\u6b62 “42830 – invalid_foreign_key” \u932f\u8aa4\u3002<\/li>\n
    4. \u7981\u7528\u6216\u522a\u9664\u5916\u9375\u7d04\u675f\uff1a<\/strong>\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u9700\u8981\u66ab\u6642\u7981\u7528\u6216\u522a\u9664\u5916\u9375\u7d04\u675f\u4ee5\u57f7\u884c\u67d0\u4e9b\u64cd\u4f5c\u3002\u4f46\u662f\uff0c\u9032\u884c\u6b64\u64cd\u4f5c\u6642\u8981\u5c0f\u5fc3\uff0c\u56e0\u70ba\u5982\u679c\u8655\u7406\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u5b8c\u6574\u6027\u554f\u984c\u3002<\/li>\n<\/ol>\n

      \u901a\u904e\u9075\u5faa\u9019\u4e9b\u6b65\u9a5f\uff0c\u60a8\u61c9\u8a72\u80fd\u5920\u89e3\u6c7a PostgreSQL \u4e2d\u7684 “42830 – invalid_foreign_key” \u932f\u8aa4\u3002\u8a18\u4f4f\uff0c\u5728\u9032\u884c\u4efb\u4f55\u66f4\u6539\u4e4b\u524d\uff0c\u59cb\u7d42\u5099\u4efd\u6578\u64da\uff0c\u4ee5\u78ba\u4fdd\u5728\u9700\u8981\u6642\u53ef\u4ee5\u6062\u5fa9\u3002<\/p>\n

      \u7e3d\u4e4b\uff0cPostgreSQL \u4e2d\u7684 “42830 – invalid_foreign_key” \u932f\u8aa4\u53ef\u80fd\u662f\u7531\u65bc\u6578\u64da\u4e0d\u4e00\u81f4\u6216\u5916\u9375\u5b9a\u7fa9\u4e0d\u6b63\u78ba\u5f15\u8d77\u7684\u3002\u901a\u904e\u4ed4\u7d30\u6aa2\u67e5\u6578\u64da\u548c\u9a57\u8b49\u7d04\u675f\uff0c\u60a8\u53ef\u4ee5\u4fee\u5fa9\u6b64\u932f\u8aa4\u4e26\u78ba\u4fdd\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\u3002\u5982\u679c\u60a8\u9700\u8981\u9032\u4e00\u6b65\u7684\u5e6b\u52a9\u6216\u6709\u4efb\u4f55\u554f\u984c\uff0c\u96a8\u6642\u806f\u7e6b\u6211\u5011\u7684 \u9999\u6e2f VPS \u8a17\u7ba1<\/a> \u5c08\u5bb6\uff0c\u4ed6\u5011\u53ef\u4ee5\u63d0\u4f9b\u6307\u5c0e\u548c\u652f\u6301\u3002<\/p>\n

      \u7e3d\u7d50\uff1a\u5982\u679c\u60a8\u5728 PostgreSQL \u4e2d\u9047\u5230 “42830 – invalid_foreign_key” \u932f\u8aa4\uff0c\u9019\u8868\u793a\u5916\u9375\u7d04\u675f\u5b58\u5728\u554f\u984c\u3002\u53ef\u4ee5\u901a\u904e\u6aa2\u67e5\u6578\u64da\u4e00\u81f4\u6027\u3001\u9a57\u8b49\u5916\u9375\u5b9a\u7fa9\u3001\u4f7f\u7528 CASCADE \u6216 SET NULL \u64cd\u4f5c\uff0c\u6216\u7981\u7528\/\u522a\u9664\u5916\u9375\u7d04\u675f\u4f86\u4fee\u5fa9\u6b64\u932f\u8aa4\u3002\u5982\u9700\u53ef\u9760\u4e14\u9ad8\u6548\u7684 VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8003\u616e \u9999\u6e2f VPS \u8a17\u7ba1<\/a>\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

      \u5982\u4f55\u4fee\u5fa9 PostgreSQL ...<\/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-21402","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21402","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=21402"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21402\/revisions"}],"predecessor-version":[{"id":24091,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21402\/revisions\/24091"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21402"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21402"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21402"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}