IF EXISTS (SELECT TABLE_NAME FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME = N'ChangeBank_view')
    DROP View ChangeBank_view

表是否存在：

if exists (select 1 from sysobjects where id = object_id('test.Owner.users'))
print '存在'
else
print '不存在'

Temp表否存在：

if exists(select * from tempdb..sysobjects where id=object_id('tempdb..#TempReCodeForNewLoginRoom'))
PRINT '存在' 
ELSE 
PRINT'不存在'

exists

if exists (select count(*) from sysobjects where id = object_id('test.Owner.users'))
你这个查询结果必然为真，1或者0.外面用if exists的结果肯定是存在啊。改成select 1 from sysobjects where id = object_id('users'))

sql server中如何判断游标是否存在

DECLARE @SNAME VARCHAR(20)
DECLARE DD  CURSOR FOR SELECT SNAME FROM S
OPEN DD
--楼上说的对.你要的是判断游标是否存在
select * from MASTER.dbo.syscursors where cursor_name='DD'
--以下操作为判断游标是否存在的同时检测游标状态。
SELECT (CASE WHEN CURSOR_STATUS('global','DD')=1 THEN '游标的结果集至少有一行'
            WHEN CURSOR_STATUS('global','DD')=0 THEN '游标的结果集为空'
            WHEN CURSOR_STATUS('global','DD')=-1 THEN '游标被关闭'
            WHEN CURSOR_STATUS('global','DD')=-2 THEN '游标不适用'
            WHEN CURSOR_STATUS('global','DD')=-3 THEN '游标不存在' END) AS RESULT

1、判断是否存在addOneArticle这个存储过程
if Exists(select name from sysobjects where NAME = 'addOneArticle' and type='P')
drop procedure addOneArticle

2、判断是否存在countAr这个触发器
if exists(select * from dbo.sysobjects where id = object_id(N'[dbo].[countAr]') and OBJECTPROPERTY(id, N'IsTrigger') = 1)
drop trigger countAr

3、判断是否存在View_1这个视图
IF EXISTS (SELECT TABLE_NAME FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME = N'View_1')
DROP View View_1

4、判断是否存在USER_Fun这个用户函数

(注意此处的type 有两种,分别是'TF'-Table-valued Function 表值函数 或'FN'-Scalar-valued Function 标量值函数)
if exists(select * from dbo.sysobjects where id = object_id(N'[dbo].[USER_Fun]') and (type = 'FN' or type = 'TF'))
DROP FUNCTION USER_Fun

5、判断表'Tb'是否存在
if (exists (SELECT * FROM dbo.sysobjects where id = object_id(N'Tb')and OBJECTPROPERTY(id, N'IsUserTable') = 1))
DROP TABLE Tb

6、判断数据库是否存在

if exists( select * from master.dbo.sysdatabases where dbid=db_ID( 'scbjdb' ) )

drop database scbjdb

else

print 'no exist scbjdb'

临时表是否存在：

方法一：
use fireweb;
go

if exists(select * from tempdb..sysobjects where id=object_id('tempdb..##TEMP_TBL'))
PRINT '存在'
ELSE
PRINT'不存在'

方法二：
use fireweb;
go

if exists (select * from tempdb.dbo.sysobjects where id = object_id(N'tempdb..#TEMP_TBL') and type='U')
PRINT '存在'
ELSE
PRINT'不存在'