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akesselFlag for United States of America

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Performance on Sum / Group By in a sql expression

I have a Sum/Group By query - without the sum, it takes about 4 seconds to execute in query analyzer, with the sum it takes 23 seconds (and I assume will get far worse as the date range increases).

Can anyone help me figure out if there is a better way to construct this query to improve the performance of the "SUM"

Code

select T_3.[ACCOUNTNUMBER],T_3.[DESCRIPTION],Sum(T_1.AMOUNT)

From DBO.GL7TRANSACTIONS AS GL7TRANSACTIONS
LEFT OUTER JOIN DBO.GL7TRANSACTIONDISTRIBUTIONS AS T_1 ON GL7TRANSACTIONS.GL7TRANSACTIONSID = T_1.GL7TRANSACTIONSID
LEFT OUTER JOIN DBO.tf_GL7SECUREPROJECTS(1, 1, 0) AS T_2 ON T_1.GL7PROJECTSID = T_2.GL7PROJECTSID
LEFT OUTER JOIN DBO.tf_GL7SECUREACCOUNTS(1, 1, 0) AS T_3 ON GL7TRANSACTIONS.GL7ACCOUNTSID = T_3.GL7ACCOUNTSID
LEFT OUTER JOIN DBO.GL7ACCOUNTCODES AS T_4 ON T_3.GL7ACCOUNTCODESID = T_4.GL7ACCOUNTCODESID
INNER JOIN DBO.GL7BATCHES AS T_5 ON GL7TRANSACTIONS.GL7BATCHESID = T_5.GL7BATCHESID

Where ((GL7TRANSACTIONS.[POSTDATE] BETWEEN '2010-06-01' AND '2010-07-31 23:59:59.997'
      AND T_2.[UNMASKEDPROJECTID]  =  'NYihrc'
      AND (T_4.ACCOUNTCODE) like '6%')
      AND GL7TRANSACTIONS.[GL7GENERALINFOID]  =  1
      AND T_5.[STATUS] NOT IN (8,9))

group by T_3.[Accountnumber],T_3.[Description]
SOLUTION
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Raja Jegan R
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I am using as a base, sql that is generated from a tool the vendor supplies in their built in querying tool - in their client sofware.  But ....  I did extricate the query from this join:

LEFT OUTER JOIN DBO.tf_GL7SECUREPROJECTS(1, 1, 0) AS T_2 ON T_1.GL7PROJECTSID = T_2.GL7PROJECTSID

by using the GL7PROJECTTSID directly in the where clasue, and that seems to have made a huge difference.

Frankly I'm not to sure what's going on in the tf.dbo tables but its a complex database, with someone limited visibility into what is going on.  I'm just playing it safe and doing it the way they do it in their query tools.

I will take a look at DBO.tf_GL7SECUREACCOUNTS(1, 1, 0) and see if there is a straight table that gives me the same info - I only need the account number and description and the middle segment of the account description to execute the query and get the results I need, you would think I wouldn't need a derived table, but ...
akessel,

Have you tried using the table directly and are you able to see some good performance on that..
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ASKER

Both commens suggesting using the table directly were on the right track, when I took that approach, which I was able to do easily, it cut execution speed 60%.

What the heck is a table valued function, anyway?
>>What the heck is a table valued function, anyway?<<
a Table-valued function, is just a function that returns a table as a result. Think of it as a view with steroids (because you can do more things in a function than in a view). More info here.
http://msdn.microsoft.com/en-us/library/ms191165.aspx 
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ASKER

Ah ... I see them out there .. these in particular were designed to hide availability of some data from some users who do input, not necessary for the purpose I am using them for since it is read-only.