1 2 3 4 5 6 7 8 9 10 | SELECT tc.constraint_name, tc.table_name, kcu.column_name, ccu.table_name AS foreign_table_name, ccu.column_name AS foreign_column_name, tc.is_deferrable,tc.initially_deferred FROM information_schema.table_constraints AS tc JOIN information_schema.key_column_usage AS kcu ON tc.constraint_name = kcu.constraint_name JOIN information_schema.constraint_column_usage AS ccu ON ccu.constraint_name = tc.constraint_name WHERE constraint_type = 'FOREIGN KEY' AND tc.table_name = 'your table name'; |
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constraint_type有四种:UNIQUE、PRIMARY KEY、CHECK、FOREIGN KEY
通过修改上边sql语句的table_name和constraint_type来进行相应的查询
警告
本文最后更新于 December 28, 2017,文中内容可能已过时,请谨慎使用。