--判断数据库是否存在 if exists(select * from master..sysdatabases wherename=N'库名') print 'exists' else print 'not exists' --------------- -- 判断要创建的表名是否存在 if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[表名]') and OBJECTPROPERTY(id, N'IsUserTable') =1) -- 删除表 drop table [dbo].[表名] go --------------- --判断要创建临时表是否存在 If Object_Id('Tempdb.dbo.#Test') Is Not Null begin print '存在' end else begin print '不存在' end --------------- -- 判断要创建的存储过程名是否存在 if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[存储过程名]') and OBJECTPROPERTY(id, N'IsProcedure')= 1) -- 删除存储过程 drop procedure [dbo].[存储过程名] go --------------- -- 判断要创建的视图名是否存在 if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[视图名]') and OBJECTPROPERTY(id, N'IsView') =1) -- 删除视图 drop view [dbo].[视图名] go --------------- -- 判断要创建的函数名是否存在 if exists (select * from dbo.sysobjects where id =object_id(N'[dbo].[函数名]') and xtype in (N'FN', N'IF', N'TF')) -- 删除函数 drop function [dbo].[函数名] go if col_length('表名', '列名') is null print '不存在' select 1 from sysobjects where id in (select id from syscolumnswhere name='列名') and name='表名'