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09.10.2008 at 06:18AM PDT, ID: 23719044
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9.3

t-sql batch process performance

Asked by prumery in SQL Server 2005, MS SQL Server

Tags: , ,

I'm looking for a solution to replacing a cursor in a stored procedure that is used in a loop to process 20k to 1mm records every day.  The cursor selects all records from a staging table and then loops thru them checking the date of the record.  It will then check the history table for existence of the record and will update the values, else insert the new record.  I attached the top part of the sproc so you get the idea of what's going on now.  Any help or examples are appreciated.Start Free Trial 
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declare CalcHistory CURSOR FOR
SELECT     ID, AudType, AudCompID, AudDate, AudTime, cast(AudHomeid as decimal(15,0)) as AudHomeid, AudName, AudMortgageReferenceNumber, AudGMS_Tracking, AudAmount, 
                      AudCheckNumber, AudReturnReasonCode, AudReturnEffectiveDate, AudRemarks, ClearedDate
FROM          dailyupload
OPEN CalcHistory
Fetch Next from CalcHistory into 
	@ID, @AudType, @AudCompID,@AudDate, @AudTIme, @AudHomeid, @AudName , 
	@AudMortgageReferenceNumber, @AudGMS_Tracking, @AudAmount, @AudCheckNumber, 
	@AudReturnReasonCode, @AudReturnEffectiveDate, @AudRemarks, @ClearedDate
 
WHILE @@FETCH_STATUS = 0
BEGIN
 
		if left(@auddate,4) = '1999' 
		begin
		set @count = (select count(*) from [hist1999] where id = @ID) 
			if @count > 0 
			 begin
			         
			   update hist1999
			   set  Audtype = @Audtype,
					Audcompid = @Audcompid,
					Auddate = @Auddate,
					AudTime = @AudTime,
					Audhomeid = @Audhomeid,
					Audname = @Audname,
					AudMortgageReferenceNumber = @AudMortgageReferenceNumber,
					AudGMS_tracking = @AudGMS_tracking,
					AudAmount = @AudAmount,
					AudCheckNumber = @AudCheckNumber,
					AudReturnreasoncode = @AudReturnreasoncode,
					AudReturnEffectiveDate = @AudReturnEffectiveDate,
					AudRemarks = @AudRemarks,
					ClearedDate = @ClearedDate
			   where id = @id
				
			   end 
			else
			  begin
			 
				insert hist1999
					   (ID,Audtype,Audcompid,Auddate,AudTime,Audhomeid,Audname, AudMortgageReferenceNumber,AudGMS_tracking,AudAmount, AudCheckNumber,AudReturnreasoncode,AudReturnEffectiveDate, AudRemarks,ClearedDate) 
					   values (@ID, @Audtype,@Audcompid,@Auddate,@AudTime,@Audhomeid,@Audname,@AudMortgageReferenceNumber,@AudGMS_tracking, @AudAmount,@AudCheckNumber,@AudReturnreasoncode,@AudReturnEffectiveDate,@AudRemarks, @ClearedDate)
 
			  end 
 
		end
[+][-]09.10.2008 at 06:27AM PDT, ID: 22438079

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[+][-]09.10.2008 at 06:27AM PDT, ID: 22438086

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About this solution

Zones: SQL Server 2005, MS SQL Server
Tags: microsoft, sql server, 2005
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Solution Provided By: BrandonGalderisi
Participating Experts: 2
Solution Grade: A
 
 
 
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