Question

I’m really puzzled by this one!! I’m sure it’s simple but really can’t figure it out!!

DECLARE @jobid INT = 100
   IF (@JobID >= 0)
 BEGIN 
SELECT * into #tmp FROM Persons 
 end
    ELSE
 BEGIN
SELECT * into #tmp FROM Persons1 
 end

It gives an error that the #tmp table already exists! Why it would validate both statements !

Of course my original query is huge and doing more, but that’s a sample to illustrate my error.

Can anybody explain it please?

The #tmp table is not there, even when you try to drop it or change the name, still the engine validates both statements!

I’m using 2008 R2.

Thanks
Jason

Answer 1

You run it over Linked Server? Or you not deleted the one from previous run.

Try to create #tmp table prior to IF statement:

CREATE TABLE #tmp(fields...)

DECLARE @jobid INT = 100
IF (@JobID >= 0)
BEGIN 
  INSERT #tmp
  SELECT * FROM Persons 
end
ELSE
BEGIN
  INSERT #Tmp
  SELECT * FROM Persons1 
end

or delete provious one

IF OBJECT_ID('tempdb..#tmp') IS NOT NULL
  EXEC('DROP TABLE #tmp')
GO

DECLARE @jobid INT = 100
   IF (@JobID >= 0)
 BEGIN 
SELECT * into #tmp FROM Persons 
 end
    ELSE
 BEGIN
SELECT * into #tmp FROM Persons1 
 end