--第一種方式 
create table #tmp(name varchar(255),id int)

--第二種方式
select count(id) as storyNum ,
sum(convert(numeric(10,2),case when isnumeric(code)=1 then code else 0 end)) as codeNum,
sum((case when isnumeric(realcode)=1 then convert(numeric(10,2),realcode) else 0.0 end)) as realcodeNum,
tdtname,cycle,jiracomponent,jirastatename,qualityvalue,storycodellt 
into #tmp from IKNOW_STORY_U2000V1R7C00 group by tdtname,cycle,jiracomponent,jirastatename,qualityvalue,storycodellt

--查詢臨時表
select * from #tmp

--刪除臨時表
if object_id('tempdb..#tmp') is not null
	begin
		drop table #tmp 
	end 

--錯誤的臨時表刪除操作，因為所在數據庫不同
IF EXISTS (SELECT * FROM sysobjects WHERE object_id = OBJECT_ID(N'[dbo].[#tempTable]') AND type in (N'U'))
 Begin
 DROP TABLE [dbo].[tempTable]
End
 --錯誤的臨時表刪除操作,因為臨時表名已變
if exists (select * from tempdb.dbo.sysobjects where id = object_id(N'[#temptable]'))
Begin
 drop table #temptable
End

--正確的臨時表刪除操作
if object_id('tempdb..#tempTable') is not null Begin
 drop table #tempTable
End

IF Object_id('Tempdb..#dl') IS NOT NULL  
DROP TABLE #dl --如果有存在就刪除臨時表
CREATE TABLE #dl (neirong char(20),icount int, dlzonjine int, dlshu int, dlyin int) --重建臨時表
INSERT INTO #dl SELECT * FROM tab1 --把物理表的數據插到臨時表