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Message Posted: Tue, 06 Apr 2004 @ 17:59:00 GMT

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I have a query that attempts to aggregate fields from a derived table. The derived table runs in 5 minutes, with approx 100,000 records, but the aggregation runs out of spool space. I need tocount/sum a distinct set of records, hence the derived table.

How can I improve the query so it doesn't run out of spool space?

It looks something like this:

     select count (t1.col1), sum (t1.col2), t1.col3
     from
     (Select Distinct col1, col2, col3, col4, col5
     from table1) t1
     Group by t1.col3

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