c# - SQL Server Global Temp Table Still Exist After Drop -

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i'm trying run query in sql server. inside query there part this:

... if exists(select * tempdb.dbo.sysobjects            id = object_id(n'tempdb.dbo.[##emp]'))      drop table ##emp     select *  ##emp  #emp (nolock) ...

the thing keep getting error says ##emp exists. how thing possible when checked if exist drop? tried remove if exist part , manually drop table, still says table exists.

check both temp table statuses simple: 

select * tempdb..sysobjects name '%emp%'

then shure handle deletion , recreation both:

begin transaction     ...     if exists(select * tempdb..sysobjects id = object_id(n'tempdb..[#emp]'))         drop table #emp     create table #emp(exampleid uniqueidentifier);     ...     if exists(select * tempdb.dbo.sysobjects id = object_id(n'tempdb.dbo.[##emp]'))          drop table ##emp         select *      ##emp      #emp     ... commit transaction

as @damien-the-unbeliever pointed out globally visible temporary table can quite troublesome, double check if need it.
in case it's confusing have such similar names...


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