SQL Running a query when a condition exists

I have the following query where I set two variable dates to field values in a view:

use livedb
Declare @OPSDate as DateTime;
Declare @AUDDate as DateTime;
if OBJECT_ID(N'tempdb..#RollTest') is not null
	truncate table #RollTest
	Create table #RollTest(
		  [AccountNumber] varchar (15)
		  ,[CAmt] decimal(15,2)
		  ,[VisitID] varchar (15)

set @OPSDate  = (select [OPS_LD_Closed] from [livedb].[dbo].[vw_DAILY_ATB_OPS_CLOSE] )
set @AUDDate =(select  [AUDIT_LD_Closed]  from [livedb].[dbo].[vw_DAILY_ATB_OPS_CLOSE])
select dateadd(dd,datediff(dd,0,@OPSDate),0) as OPS_LD
select dateadd(dd,datediff(dd,0,@AUDDate),0) as AUD_LD
[b]/*while  dateadd(dd,datediff(dd,0,@OPSDate),0) = dateadd(dd,datediff(dd,0,@AUDDate),0)*/[/b]
	insert into #RollTest   
	SELECT     TOP (100) PERCENT dbo.BarVisits.AccountNumber, SUM(CONVERT(numeric(15, 2), dbo.BarChargeTransactions.Amount)) AS CAmt, 
	FROM         dbo.BarChargeTransactions LEFT OUTER JOIN
						  dbo.BarVisits ON dbo.BarChargeTransactions.VisitID = dbo.BarVisits.VisitID
	WHERE     (dbo.BarChargeTransactions.BatchDateTime >= dateadd(dd,datediff(dd,0,@OPSDate),0)) AND 
						  (dbo.BarChargeTransactions.BatchDateTime < dateadd(dd,datediff(dd,0,@AUDDate)+1,0)) AND (dbo.BarChargeTransactions.Type = 'C')
	GROUP BY dbo.BarVisits.AccountNumber,  dbo.BarVisits.VisitID
	ORDER BY dbo.BarVisits.AccountNumber
Select * from #RollTest

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Without a while condition set, the query runs fine.  Currently the @OPSDate = @AUDDate.   However, what I am trying to do is set up a condition that the query will run when the @OPSDate > than @AUDDate.  The @OPSDate is the last date the source system has finished its closing process.  The @AUDDate is the last time I have successfully run this query and updated some table.  The commented "While" statement in the code does not give me any results when it is uncommented.

What can I do to insert this condition to only run when @OPSDate > @AUDDate?


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ste5anSenior DeveloperCommented:
hmm, what's wrong with

SELECT	@OPSDate =[OPS_LD_Closed] ,
		@AUDDate= [AUDIT_LD_Closed]
FROM	[livedb].[dbo].[vw_DAILY_ATB_OPS_CLOSE];

INSERT INTO #RollTest   
	SELECT	BV.AccountNumber, 
			SUM(CONVERT(NUMERIC(15, 2), dBCT.Amount)) AS CAmt, 
	FROM	dbo.BarChargeTransactions BCT
		LEFT OUTER JOIN dbo.BarVisits BV ON BCT.VisitID = BV.VisitID
	WHERE	dBCT.BatchDateTime >= DATEADD(DD,DATEDIFF(DD,0,@OPSDate),0)) 
		AND	dBCT.BatchDateTime < DATEADD(DD,DATEDIFF(DD,0,@AUDDate)+1,0)
		AND dBCT.Type = 'C'
		AND @OPSDate > @AUDDate
	GROUP BY BV.AccountNumber,  
	ORDER BY BV.AccountNumber;

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Scott PletcherSenior DBACommented:
The code is current checking for them to be equal.  You should just be able to change it to check if @OPSDate > @AUDDate:

while  dateadd(dd,datediff(dd,0,@OPSDate),0) > dateadd(dd,datediff(dd,0,@AUDDate),0)
--                                                                                > rather than =
GPSPOWAuthor Commented:

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Microsoft SQL Server 2008

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