select * from dict where DictCode != '' and PId=5truncate table menuSELECT * FROM sys.foreign_keys WHERE referenced_object_id=OBJECT_ID('menu'); --找到引用該表的外鍵--ALTER TABLE dbo.XX DROP constraint FK_User_XXALTER TABLE dbo.RoleMenu DROP constraint FK_Menu_RoleMenu --刪除外鍵select * from sys.foreign_keys where referenced_object_id=object_id('menu') order by 1 --查詢引用的外鍵alter table menu drop constraint FK_dbo.RoleMenu_dbo.Menu_MenuIdselectfk.name,fk.object_id,OBJECT_NAME(fk.parent_object_id) as referenceTableName from sys.foreign_keys as fk join sys.objects as o on fk.referenced_object_id=o.object_id where o.name='menu'-- ? ?得到 ?外鍵消息?FK__photo__x_id__6991A7CB -- 得到 FK_dbo.RoleMenu_dbo.Menu_MenuIdALTER TABLE dbo.RoleMenu? DROP CONSTRAINT Menu_MenuIdselect fk.name,fk.object_id,object_name(fk.parent_object_id) as referencetablename from sys.foreign_keys as fk join sys.objects as o on fk.referenced_object_id=o.object_id where o.name = 'Menu'alter table RoleMenu drop constraint FK_RoleMenu_Menu_MenuId ALTER TABLE 表名 DROP CONSTRAINT 約束名ALTER TABLE Menu DROP CONSTRAINT FK_dbo.RoleMenu_dbo.Menu_MenuId

以上代碼測試均失敗,

最后, 直接刪除表主鍵

?

轉載于:https://www.cnblogs.com/enych/p/10049649.html

總結

以上是生活随笔為你收集整理的sqlserver 2014 删除主键约束的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。