drop temp table對SQL Server不起作用

Question

我在SQL server management studio中有一個查詢腳本，如下所示：

if OBJECT_ID('tempdb..#temp') IS NOT NULL
  drop table #temp
select somecolumn into #temp from sometable where somecondition

if OBJECT_ID('tempdb..#temp') IS NOT NULL
  drop table #temp
select somecolumn2 into #temp from sometable2 where somecondition2

我添加了drop table行以確保從緩存中清除#temp表。 但是，為了重復運行腳本，我仍然會收到錯誤，因為“這里已經是數據庫中名為'#temp'的對象了。” 在第二個選擇行中。 似乎丟棄表沒有按照我的意願生效。

Answer 1

if OBJECT_ID('tempdb..#temp') IS NOT NULL
  drop table #temp
select somecolumn into #temp from sometable where somecondition

GO   --<-- Separate these two block with a batch separator 

if OBJECT_ID('tempdb..#temp') IS NOT NULL
  drop table #temp
select somecolumn2 into #temp from sometable2 where somecondition2