drop temp table对SQL Server不起作用

Question

我在SQL server management studio中有一个查询脚本，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行以确保从缓存中清除#temp表。 但是，为了重复运行脚本，我仍然会收到错误，因为“这里已经是数据库中名为'#temp'的对象了。” 在第二个选择行中。 似乎丢弃表没有按照我的意愿生效。

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