SqlServer判断(数据库,表,视图,存储过程等)是否存在

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判断数据库是否存在

if exists(select* from master..sysdatabases where name=N'库名')

print 'exists'

else

print 'not exists'

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-- 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

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--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

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-- 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

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-- 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

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-- 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') isnull

print '不存在'

select 1 from sysobjectswhere id in(select id from syscolumnswhere name='列名')and name='表名'

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