---测试数据
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[table1]') and OBJECTPROPERTY(id, N'IsUserTable') = 1) if exists (select * from dbo.sysobje
if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[table1]') and OBJECTPROPERTY(id, N'IsUserTable') = 1) if exists (select * from dbo.sysobje