{"id":21344,"date":"2024-01-02T07:49:25","date_gmt":"2024-01-02T07:49:25","guid":{"rendered":"https:\/\/server.hk\/blog\/21344\/"},"modified":"2024-11-14T10:36:20","modified_gmt":"2024-11-14T02:36:20","slug":"how-to-fix-postgresql-error-code-23502-not_null_violation","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/21344\/","title":{"rendered":"\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a23502 – not_null_violation"},"content":{"rendered":"

\u5982\u4f55\u4fee\u5fa9 PostgreSQL \u932f\u8aa4\u4ee3\u78bc\uff1a23502 – not_null_violation<\/h1>\n

PostgreSQL \u662f\u4e00\u6b3e\u529f\u80fd\u5f37\u5927\u7684\u958b\u6e90\u95dc\u806f\u5f0f\u6578\u64da\u5eab\u7ba1\u7406\u7cfb\u7d71\uff0c\u5ee3\u6cdb\u61c9\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5f0f\u3002\u7136\u800c\uff0c\u8207\u5176\u4ed6\u8edf\u9ad4\u4e00\u6a23\uff0c\u5b83\u4e5f\u53ef\u80fd\u51fa\u73fe\u932f\u8aa4\u3002\u5176\u4e2d\u4e00\u500b PostgreSQL \u4f7f\u7528\u8005\u53ef\u80fd\u9047\u5230\u7684\u5e38\u898b\u932f\u8aa4\u662f\u932f\u8aa4\u4ee3\u78bc 23502 \u7684\u300cnot_null_violation\u300d\u932f\u8aa4\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u542b\u7fa9\u4ee5\u53ca\u5982\u4f55\u4fee\u5fa9\u5b83\u3002<\/p>\n

\u7406\u89e3\u932f\u8aa4<\/h2>\n

\u300cnot_null_violation\u300d\u932f\u8aa4\u767c\u751f\u5728\u60a8\u5617\u8a66\u5728\u67d0\u500b\u8868\u4e2d\u63d2\u5165\u6216\u66f4\u65b0\u4e00\u884c\u8a18\u9304\u6642\uff0c\u9055\u53cd\u4e86 NOT NULL \u7d04\u675f\u3002\u5728 PostgreSQL \u4e2d\uff0cNOT NULL \u7d04\u675f\u78ba\u4fdd\u67d0\u500b\u5217\u4e0d\u80fd\u5305\u542b NULL \u503c\u3002\u7576\u60a8\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u4e00\u884c\u6642\u672a\u63d0\u4f9b NOT NULL \u5217\u7684\u503c\uff0cPostgreSQL \u4fbf\u6703\u62cb\u51fa\u6b64\u932f\u8aa4\u3002<\/p>\n

\u4f8b\u5982\uff0c\u5047\u8a2d\u60a8\u6709\u4e00\u500b\u540d\u70ba\u300cusers\u300d\u7684\u8868\uff0c\u5176\u4e2d\u6709\u4e00\u500b\u540d\u70ba\u300cemail\u300d\u7684\u5217\uff0c\u4e26\u8a2d\u6709 NOT NULL \u7d04\u675f\u3002\u5982\u679c\u60a8\u5617\u8a66\u5728\u300cusers\u300d\u8868\u4e2d\u63d2\u5165\u4e00\u689d\u65b0\u8a18\u9304\u800c\u672a\u6307\u5b9a\u300cemail\u300d\u5217\u7684\u503c\uff0c\u60a8\u5c07\u9047\u5230\u300cnot_null_violation\u300d\u932f\u8aa4\u3002<\/p>\n

\u4fee\u5fa9\u932f\u8aa4<\/h2>\n

\u8981\u4fee\u5fa9\u300cnot_null_violation\u300d\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u78ba\u4fdd\u70ba\u5177\u6709 NOT NULL \u7d04\u675f\u7684\u5217\u63d0\u4f9b\u4e00\u500b\u975e NULL \u503c\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u53ef\u9075\u5faa\u7684\u6b65\u9a5f\uff1a<\/p>\n

1. \u6aa2\u67e5\u8868\u7d50\u69cb<\/h3>\n

\u9996\u5148\uff0c\u9a57\u8b49\u8868\u683c\u7d50\u69cb\u4ee5\u78ba\u5b9a\u5c0e\u81f4\u932f\u8aa4\u7684\u5217\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u6307\u4ee4\u4f86\u63cf\u8ff0\u8a72\u8868\uff1a<\/p>\n

DESCRIBE table_name;<\/code><\/pre>\n
\u5c07\u300ctable_name\u300d\u66ff\u63db\u70ba\u5be6\u969b\u767c\u751f\u932f\u8aa4\u7684\u8868\u540d\u3002<\/p>\n
2. \u78ba\u5b9a\u5217<\/h3>\n
\u5c0b\u627e\u8a2d\u6709 NOT NULL \u7d04\u675f\u7684\u5217\u3002\u5728\u8868\u63cf\u8ff0\u4e2d\uff0c\u8a72\u5217\u65c1\u908a\u901a\u5e38\u6703\u6709\u300cNOT NULL\u300d\u95dc\u9375\u5b57\u3002<\/p>\n
3. \u63d0\u4f9b\u975e NULL \u503c<\/h3>\n
\u5728\u63d2\u5165\u6216\u66f4\u65b0\u4e00\u884c\u6642\uff0c\u52d9\u5fc5\u70ba\u4e0a\u4e00\u6b65\u9a5f\u4e2d\u8b58\u5225\u7684\u5217\u63d0\u4f9b\u4e00\u500b\u975e NULL \u503c\u3002\u5982\u679c\u60a8\u6b63\u5728\u63d2\u5165\u4e00\u689d\u65b0\u8a18\u9304\uff0c\u8acb\u78ba\u4fdd\u5728 INSERT \u8a9e\u53e5\u4e2d\u5305\u542b\u8a72\u5217\u7684\u503c\u3002\u5982\u679c\u60a8\u6b63\u5728\u66f4\u65b0\u4e00\u884c\uff0c\u8acb\u4fee\u6539 UPDATE \u8a9e\u53e5\u4ee5\u5305\u542b\u8a72\u5217\u7684\u975e NULL \u503c\u3002<\/p>\n
4. \u6aa2\u67e5\u6578\u64da\u985e\u578b<\/h3>\n
\u78ba\u4fdd\u60a8\u70ba\u8a72\u5217\u63d0\u4f9b\u7684\u503c\u8207\u5176\u6578\u64da\u985e\u578b\u4e00\u81f4\u3002\u5982\u679c\u6578\u64da\u985e\u578b\u662f\u5b57\u7b26\u4e32\uff0c\u5247\u61c9\u5c07\u503c\u7528\u55ae\u5f15\u865f\u62ec\u8d77\u4f86\u3002\u5982\u679c\u662f\u6578\u5b57\u985e\u578b\uff0c\u8acb\u63d0\u4f9b\u6709\u6548\u7684\u6578\u5b57\u3002<\/p>\n
5. \u9a57\u8b49\u7d04\u675f<\/h3>\n
\u5982\u679c\u60a8\u5728\u9075\u5faa\u4ee5\u4e0a\u6b65\u9a5f\u5f8c\u4ecd\u7136\u9047\u5230\u932f\u8aa4\uff0c\u8acb\u4ed4\u7d30\u6aa2\u67e5\u8a72\u8868\u4e0a\u7684\u7d04\u675f\u3002\u53ef\u80fd\u5b58\u5728\u5176\u4ed6\u7d04\u675f\u6216\u89f8\u767c\u5668\u5c0e\u81f4\u8a72\u554f\u984c\u3002\u6aa2\u67e5\u8868\u7684\u7d04\u675f\u548c\u89f8\u767c\u5668\u4ee5\u78ba\u4fdd\u5b83\u5011\u4e0d\u8207 NOT NULL \u7d04\u675f\u885d\u7a81\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728 PostgreSQL \u4e2d\uff0c\u932f\u8aa4\u4ee3\u78bc\u70ba 23502 \u7684\u300cnot_null_violation\u300d\u932f\u8aa4\u767c\u751f\u5728\u60a8\u5617\u8a66\u63d2\u5165\u6216\u66f4\u65b0\u4e00\u884c\u9055\u53cd\u4e86 NOT NULL \u7d04\u675f\u7684\u8a18\u9304\u6642\u3002\u8981\u4fee\u5fa9\u6b64\u932f\u8aa4\uff0c\u60a8\u9700\u8981\u70ba\u8a2d\u5b9a\u4e86\u7d04\u675f\u7684\u5217\u63d0\u4f9b\u4e00\u500b\u975e NULL \u503c\u3002\u9a57\u8b49\u8868\u7d50\u69cb\u3001\u78ba\u5b9a\u5217\u4e26\u78ba\u4fdd\u60a8\u63d0\u4f9b\u4e86\u6b63\u78ba\u7684\u6578\u64da\u985e\u578b\u3002\u5982\u679c\u932f\u8aa4\u4ecd\u7136\u5b58\u5728\uff0c\u8acb\u6aa2\u67e5\u662f\u5426\u6709\u4efb\u4f55\u885d\u7a81\u7684\u7d04\u675f\u6216\u89f8\u767c\u5668\u3002<\/p>\n
\u5982\u9700\u53ef\u9760\u4e14\u9ad8\u6027\u80fd\u7684 VPS \u8a17\u7ba1\u89e3\u6c7a\u65b9\u6848\uff0c\u8acb\u8003\u616e Server.HK<\/a>\u3002\u501f\u52a9 Server.HK\uff0c\u60a8\u53ef\u4ee5\u9ad4\u9a57\u91cf\u8eab\u5b9a\u5236\u7684\u9802\u7d1a VPS \u8a17\u7ba1\u670d\u52d9\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-21344","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21344","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=21344"}],"version-history":[{"count":2,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21344\/revisions"}],"predecessor-version":[{"id":24159,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/21344\/revisions\/24159"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=21344"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=21344"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=21344"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}