SQL server 2000 如何判断临时表是否存在
1.判断一个临时表是否存在
if exists (select * from tempdb.dbo.sysobjects where id = object_id(N'tempdb..#tempcitys') and type='U')
drop table #tempcitys
注意tempdb后面是两个. 不是一个的
---临时表
if exists(select * from tempdb..sysobjects where name like ‘#tmp1%‘)
drop table #tmp1
或
if exists( select * from tempdb..sysobjects where id=OBJECT_ID('tempdb..#tmp') )
drop table #tmp1
--视图
if exists (select * from sysobjects where id = object_id(N‘[dbo].[ESTMP]‘)
and OBJECTPROPERTY(id, N‘IsView‘) = 1)
drop view ESTMP
判断表是否存在
if exists (select * from sysobjects where id = object_id(N'[dbo].[phone]') and OBJECTPROPERTY(id, N'IsUserTable') = 1)
drop table [dbo].[phone]
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防SQL注入函数
程序代码：
函数部分========================================================================
'------------------------------------------------
'用途:检查是否为数字,以及数字是否超出范围
'输入:检查字符,传值方式(0直接传,1取Form,2取QueryString,3取cookies,4直接Reqeust),开始数字(默认数� ......
１.建一张表 存放数据 在下面ＳＱＬ函数中有用到
create table solardata
(
yearid int not null,
data char(7) not null, ......
/*获取重复记录中较小的那个ID*/ create table tmp_Repeat as select min(id) as id from poi group by idcode having count(*) >1; /*备份删除的数据*/ select * from poi where id in (select id from tmp_repeat) /*删除重复记录中ID较小的那条
select replace('阿桂是个好孩子','阿桂','小贤') from du ......
sp_configure 'allow updates', 1
GO
reconfigure with override
GO
update syscolumns set colstat = colstat & 0x0000
where id=object_id('表名') and name='列名'
GO
sp_configure 'allow updates', 0 ......
select c0501 "订单编号",
c0503 "供应商编码",a0302 "供应商名称",
to_char(c0515,'yyyy.mm.dd') "订货日期",
to_char(c0516,'yyyy.mm.dd') "预定交货日期"
from c05,a03 where c0503=a0301 and
&nb ......
