IF OBJECT_ID('TableName', 'U') IS NOT NULL DROP TABLE TableName; Abdallah El-Chal, PMP, ITIL, MCTSThursday, January 21, 2010 7:16 PM | 2 votesWith one small correctionIF OBJECT_ID('tempDB..#myTempName','U') IS NOT NULL drop table #myTempName Premature optimization is the root...
DROP TABLE [dbo].[tempTable] End --错误的临时表删除操作,因为临时表名已变 if exists (select * from tempdb.dbo.sysobjects where id = object_id(N'[#temptable]')) Begin drop table #temptable End 2、正确的删除方式: --正确的临时表删除操作 if object_id('tempdb..#tempTable') is not nul...
方法一:使用 IF EXISTS 语句 为了避免在删除临时表之前出现错误,我们可以使用 IF EXISTS 语句来检查表是否存在。如果表存在,则删除它。否则,不执行删除操作。以下是示例代码: IFOBJECT_ID('tempdb..#TempTable')ISNOTNULLBEGINDROPTABLE#TempTableEND 1. 2. 3. 4. 在上面的代码中,我们使用了 OBJECT_ID 函数...
'钢琴', '微微老师');成绩表DROP TABLE IF EXISTS `results`; CREATE TABLE `results` ( `id` in...
利用SQL语句删除当前文件夹中一个名为temp的自由表文件为:___temp。(分数:2.00)填空项1:___(正确答案:【13】DROP TABLE)
if object_id(N'TEMP_TBL',N'U') is not null print '存在' else print '不存在' 方法二: 1 2 3 4 5 6 7 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'...
判断临时表是否存在,存在就删除,--下面以临时表#temp为例,判断它是否存在,存在就删除它IF OBJECT_ID('tempdb..#temp') is not nulldrop table #temp--方法一1if exists (select * from tempdb.dbo.s
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(2)ON COMMIT DELETE ROWS 表示临时表的数据在事务结束后truncate掉; (3)ON COMMIT DROP 表示临时表在事务结束后删除。 使用示例:(通常用来保存临时数据,用于加快数据查询速度) droptableifexistshour_temp;createtemp table hour_tempAS(SELECT*FROMhourwheredatatime>now()+'- 6 hour'); 临时表调用的sql...
exec file2table 'zj','','','xzkh_sa','C:\docman',0 */ if exists(select 1 from sysobjects where name='File2Table' and objectproperty(id,'IsProcedure')=1) drop procedure File2Table go create procedure File2Table @servername varchar(200) --服务器名 ...