{"id":87972,"date":"2024-10-18T05:31:16","date_gmt":"2024-10-17T21:31:16","guid":{"rendered":"https:\/\/server.hk\/cnblog\/87972\/"},"modified":"2024-10-18T05:31:17","modified_gmt":"2024-10-17T21:31:17","slug":"ora-22894-%e7%84%a1%e6%b3%95%e5%9c%a8%e9%9d%9e%e7%a9%ba%e8%a1%a8%e7%9a%84%e7%8f%be%e6%9c%89%e7%84%a1%e7%af%84%e5%9c%8d-ref-%e5%88%97%e4%b8%8a%e6%b7%bb%e5%8a%a0%e7%b4%84%e6%9d%9f-oracle-%e5%a0%b1","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/87972\/","title":{"rendered":"ORA-22894: \u7121\u6cd5\u5728\u975e\u7a7a\u8868\u7684\u73fe\u6709\u7121\u7bc4\u570d REF \u5217\u4e0a\u6dfb\u52a0\u7d04\u675f ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406"},"content":{"rendered":"

ORA-22894: \u7121\u6cd5\u5728\u975e\u7a7a\u8868\u7684\u73fe\u6709\u7121\u7bc4\u570d REF \u5217\u4e0a\u6dfb\u52a0\u7d04\u675f ORACLE \u5831\u932f \u6545\u969c\u4fee\u5fa9 \u9060\u7a0b\u8655\u7406<\/h1>\n

\u5728\u4f7f\u7528 Oracle \u6578\u64da\u5eab\u6642\uff0c\u958b\u767c\u8005\u548c\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u5404\u7a2e\u932f\u8aa4\u4ee3\u78bc\uff0c\u5176\u4e2d\u4e4b\u4e00\u4fbf\u662f ORA-22894<\/code>\u3002\u9019\u500b\u932f\u8aa4\u901a\u5e38\u51fa\u73fe\u5728\u5617\u8a66\u5728\u4e00\u500b\u5df2\u7d93\u5b58\u5728\u6578\u64da\u7684\u8868\u4e2d\u6dfb\u52a0\u7d04\u675f\u6642\uff0c\u7279\u5225\u662f\u91dd\u5c0d\u7121\u7bc4\u570d\u7684 REF \u5217\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u9019\u500b\u932f\u8aa4\u7684\u539f\u56e0\u3001\u5f71\u97ff\u4ee5\u53ca\u5982\u4f55\u9032\u884c\u6545\u969c\u4fee\u5fa9\u3002<\/p>\n

\u932f\u8aa4\u539f\u56e0<\/h2>\n

ORA-22894<\/code> \u932f\u8aa4\u7684\u4e3b\u8981\u539f\u56e0\u662f\u7576\u4f60\u5617\u8a66\u5728\u4e00\u500b\u5df2\u7d93\u6709\u6578\u64da\u7684\u8868\u4e2d\u6dfb\u52a0\u4e00\u500b\u7d04\u675f\uff0c\u800c\u9019\u500b\u7d04\u675f\u6d89\u53ca\u5230 REF \u5217\u6642\uff0cOracle \u6578\u64da\u5eab\u6703\u6aa2\u67e5\u8a72\u5217\u7684\u73fe\u6709\u6578\u64da\u3002\u5982\u679c\u8a72\u5217\u7684\u6578\u64da\u4e0d\u7b26\u5408\u65b0\u7d04\u675f\u7684\u8981\u6c42\uff0c\u5247\u6703\u5f15\u767c\u6b64\u932f\u8aa4\u3002<\/p>\n

\u5177\u9ad4\u4f86\u8aaa\uff0cREF \u5217\u662f\u7528\u4f86\u5efa\u7acb\u5c0d\u5176\u4ed6\u8868\u7684\u5f15\u7528\u7684\uff0c\u9019\u610f\u5473\u8457\u5b83\u5011\u5fc5\u9808\u6307\u5411\u4e00\u500b\u6709\u6548\u7684\u884c\u3002\u5982\u679c\u5728\u6dfb\u52a0\u7d04\u675f\u6642\uff0cREF \u5217\u4e2d\u5b58\u5728\u7684\u6578\u64da\u4e0d\u7b26\u5408\u9019\u4e00\u8981\u6c42\uff0c\u5247\u6703\u5c0e\u81f4 ORA-22894<\/code> \u932f\u8aa4\u3002<\/p>\n

\u5f71\u97ff\u7bc4\u570d<\/h2>\n

\u9019\u500b\u932f\u8aa4\u4e0d\u50c5\u6703\u5f71\u97ff\u5230\u7576\u524d\u7684\u6578\u64da\u5eab\u64cd\u4f5c\uff0c\u9084\u53ef\u80fd\u5c0e\u81f4\u61c9\u7528\u7a0b\u5e8f\u7684\u529f\u80fd\u53d7\u9650\uff0c\u7279\u5225\u662f\u90a3\u4e9b\u4f9d\u8cf4\u65bc\u6578\u64da\u5b8c\u6574\u6027\u7684\u61c9\u7528\u7a0b\u5e8f\u3002\u958b\u767c\u8005\u9700\u8981\u8fc5\u901f\u89e3\u6c7a\u9019\u500b\u554f\u984c\uff0c\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u7684\u7a69\u5b9a\u6027\u548c\u6578\u64da\u7684\u5b8c\u6574\u6027\u3002<\/p>\n

\u6545\u969c\u4fee\u5fa9\u6b65\u9a5f<\/h2>\n

\u8981\u4fee\u5fa9 ORA-22894<\/code> \u932f\u8aa4\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\uff1a<\/p>\n

1. \u6aa2\u67e5\u73fe\u6709\u6578\u64da<\/h3>\n

\u9996\u5148\uff0c\u60a8\u9700\u8981\u6aa2\u67e5 REF \u5217\u4e2d\u7684\u73fe\u6709\u6578\u64da\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b SQL \u67e5\u8a62\u4f86\u67e5\u770b REF \u5217\u7684\u6578\u64da\uff1a<\/p>\n

SELECT ref_column FROM your_table;<\/code><\/pre>\n
\u78ba\u4fdd\u6240\u6709\u7684\u6578\u64da\u90fd\u6307\u5411\u6709\u6548\u7684\u884c\u3002\u5982\u679c\u6709\u4efb\u4f55\u7121\u6548\u7684\u5f15\u7528\uff0c\u60a8\u9700\u8981\u5148\u6e05\u7406\u9019\u4e9b\u6578\u64da\u3002<\/p>\n
2. \u6e05\u7406\u7121\u6548\u6578\u64da<\/h3>\n
\u5982\u679c\u767c\u73fe REF \u5217\u4e2d\u6709\u7121\u6548\u7684\u6578\u64da\uff0c\u60a8\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u6216\u66f4\u65b0\u9019\u4e9b\u6578\u64da\u3002\u4f8b\u5982\uff1a<\/p>\n
DELETE FROM your_table WHERE ref_column IS NULL;<\/code><\/pre>\n
\u6216\u8005\uff0c\u60a8\u53ef\u4ee5\u5c07\u7121\u6548\u7684\u5f15\u7528\u66f4\u65b0\u70ba\u6709\u6548\u7684\u503c\u3002<\/p>\n
3. \u6dfb\u52a0\u7d04\u675f<\/h3>\n
\u5728\u6e05\u7406\u5b8c\u6578\u64da\u5f8c\uff0c\u60a8\u53ef\u4ee5\u518d\u6b21\u5617\u8a66\u6dfb\u52a0\u7d04\u675f\u3002\u4f7f\u7528\u4ee5\u4e0b SQL \u8a9e\u53e5\u4f86\u6dfb\u52a0\u7d04\u675f\uff1a<\/p>\n
ALTER TABLE your_table ADD CONSTRAINT your_constraint_name \n  FOREIGN KEY (ref_column) REFERENCES other_table (id_column);<\/code><\/pre>\n
4. \u6e2c\u8a66<\/h3>\n
\u6700\u5f8c\uff0c\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u7d04\u675f\u5df2\u6210\u529f\u6dfb\u52a0\uff0c\u4e26\u4e14\u7cfb\u7d71\u7684\u529f\u80fd\u6b63\u5e38\u904b\u884c\u3002<\/p>\n
\u7d50\u8ad6<\/h2>\n
\u5728 Oracle \u6578\u64da\u5eab\u4e2d\uff0cORA-22894<\/code> \u932f\u8aa4\u662f\u4e00\u500b\u5e38\u898b\u7684\u554f\u984c\uff0c\u901a\u5e38\u8207 REF \u5217\u7684\u6578\u64da\u5b8c\u6574\u6027\u6709\u95dc\u3002\u901a\u904e\u6aa2\u67e5\u73fe\u6709\u6578\u64da\u3001\u6e05\u7406\u7121\u6548\u6578\u64da\u4ee5\u53ca\u6b63\u78ba\u6dfb\u52a0\u7d04\u675f\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u89e3\u6c7a\u9019\u4e00\u554f\u984c\u3002\u5c0d\u65bc\u6578\u64da\u5eab\u7ba1\u7406\u54e1\u548c\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u4e86\u89e3\u9019\u4e9b\u6b65\u9a5f\u662f\u78ba\u4fdd\u6578\u64da\u5eab\u7a69\u5b9a\u6027\u548c\u6578\u64da\u5b8c\u6574\u6027\u7684\u95dc\u9375\u3002<\/p>\n
\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3\u5982\u4f55\u512a\u5316\u60a8\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u60a8\u53ef\u4ee5\u8003\u616e\u4f7f\u7528\u6211\u5011\u7684 \u9999\u6e2fVPS<\/a> \u89e3\u6c7a\u65b9\u6848\uff0c\u9019\u5c07\u70ba\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\u63d0\u4f9b\u7a69\u5b9a\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u89e3\u6c7a ORA-22894 \u932f\u8aa4\uff0c\u7121\u6cd5\u5728\u975e\u7a7a\u8868\u7684 REF \u5217\u4e0a\u6dfb\u52a0\u7d04\u675f\u7684\u6545\u969c\u4fee\u5fa9\u8207\u9060\u7a0b\u8655\u7406\u6307\u5357\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-87972","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87972","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=87972"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87972\/revisions"}],"predecessor-version":[{"id":87973,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/87972\/revisions\/87973"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=87972"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=87972"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=87972"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}