Insert into same temp table based on if condition

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>Hi there, below is an if statement in which I want to populate the table result within a table called #t for which ever statement is true.
How do I do this? The below does not seem to work:

SQL

SET @OpenQuerySql = 'IF  (' + cast(@FirstTableMonth as varchar) + '+99) = CONVERT(nvarchar(6), dateadd(month,-1,GETDATE()), 112)
BEGIN
		 SELECT *
		FROM OPENQUERY(['+ @LinkedServerName +'], '''+ @DynamicSQL + ''' ) 
UNION ALL 
	*
into #t					
FROM #temp
END
else 
begin 
SELECT ACCT_NO,
		*
		FROM OPENQUERY(['+ @LinkedServerName +'], '''+ @DynamicSQL + ''' ) 
into #t	
UNION ALL 
SELECT ACCT_NO,
		*
		FROM OPENQUERY(['+ @LinkedServerName +'], '''+ @DynamicSQL2 + ''' ) 
end
'

Posted 22-Nov-15 21:39pm

Miss R

Updated 11-Sep-22 19:17pm

Andy Lanng

v2

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Tomas Takac 23-Nov-15 9:31am

What do you mean by "it doesn't work"? Is there an error? The part with "UNION ALL * into #t" at lines 6-8 seems wrong.

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CHill60 · Answer 1 · 2015-12-12T06:10:00

There are several issues with your code but the easiest way to find them is to put a PRINT @OpenQuerySql in place of the EXEC - that way you can use the built-in error reporting in SSMS to help you locate the errors.

In this case, you have missed a SELECT before the first UNION ALL and you are not handling the insert into #t correctly for a UNION query.

Try this

SQL

SET @OpenQuerySql = 'IF  (' + cast(@FirstTableMonth as varchar) + '+99) = CONVERT(nvarchar(6), dateadd(month,-1,GETDATE()), 112)
BEGIN
   SELECT * INTO #t FROM 
   (
	SELECT *
	FROM OPENQUERY(['+ @LinkedServerName +'], '''+ @DynamicSQL + ''' ) 
	UNION ALL 
	SELECT * FROM #temp
) as tmp
END
else 
begin 
	SELECT * INTO #t FROM 
	(
	
		SELECT ACCT_NO, *
		FROM OPENQUERY(['+ @LinkedServerName +'], '''+ @DynamicSQL + ''' ) 
		UNION ALL 
		SELECT ACCT_NO, *
		FROM OPENQUERY(['+ @LinkedServerName +'], '''+ @DynamicSQL2 + ''' ) 
	) as tmp
end
'