1、判断数据表是否存在
方法一:
use yourdb; go
if object_id(N'tablename',N'U') is not null print '存在' else print '不存在'
例如: use fireweb; go
if object_id(N'TEMP_TBL',N'U') is not null print '存在' else print '不存在'
方法二:
USE [实例名] GO
IF EXISTS (SELECT * FROM dbo.SysObjects WHERE ID = object_id(N'[表名]') AND OBJECTPROPERTY(ID, 'IsTable') = 1) PRINT '存在' ELSE PRINT'不存在'
IF EXISTS (SELECT * FROM dbo.SysObjects WHERE ID = object_id(N'TEMP_TBL') AND OBJECTPROPERTY(ID, 'IsTable') = 1) PRINT '存在' ELSE PRINT'不存在'
2、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'
http://www.cnblogs.com/yugen/archive/2010/07/25/1784749.html