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Alex Rivera
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Why is Query Version 2 so much faster? I suspect the DB Engine is calling the Table-Valued-Function "GetUsageStatistic" multiple times, so is there a way to tell the engine that "GetUsageStatistic" is deterministic and should be called only once? Query Version 1 --Takes ~10 minutes select * from RosterLevel r left join GetUsageStatistics( @mindate, @maxdate ) usage on r.UserID = usage.UserID; Query Version 2 --Takes ~10 seconds select * into #usage from GetUsageStatistics( @mindate, @maxdate ); select * from RosterLevel r left join #usage on r.UserID = #usage.UserID;
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