复制DECLARE @Constraint_Name varchar (200) select @Constraint_Name = Name from dbo.sysobjects where Xtype = PK and Parent_Obj = (select [ID] from dbo.sysobjects where id = object_id(N[T_LLCJDJ]) and OBJECTPROPERTY(id,删实现 NIsUserTable) = 1) EXEC (alter table T_LLCJDJ drop constraint +@Constraint_Name ) 1.2.3.4.5.6.7.8.9.10.11.