T-SQL删除多重约束，如果存在

Question

如何将其应用于来自不同表的多个约束：

IF (OBJECT_ID('DF_Constraint') IS NOT NULL)
BEGIN
    ALTER TABLE [dbo].[tableName]
    DROP CONSTRAINT DF_Constraint
END

没有像这样为我工作：

IF (OBJECT_ID('DF_Constraint') IS NOT NULL)
AND (OBJECT_ID('DF_Constraint2') IS NOT NULL)
BEGIN
    ALTER TABLE [dbo].[tableName] DROP CONSTRAINT DF_Constraint;
    ALTER TABLE [dbo].[tableName2] DROP CONSTRAINT DF_Constraint2;
END

Answer 1

尝试这样的事情：