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    <p>I would try running the subqueries first into a temp table to gather your counts, then pull your total counts. With the way you have the query setup its going to run each of those subqueries once for every line of PCapps, which is why it is taking so long.</p> <p>Try something like this:</p> <pre><code>declare @t table (Computer varchar(10), Sequence int, Site varchar(3), SoftwareName varchar(20), OS varchar(20) ) insert into @t values ('C1',1,'BKN','Adobe Acrobat','Win7') ,('C2',1,'BKN','Adobe Acrobat','Win7') ,('C3',1,'BKN','Adobe Acrobat','Win7') ,('C1',1,'BKN','AutoCAD LT ','Win7') ,('C3',1,'BKN','AutoCAD LT ','Win7') ,('B1',2,'CTW','Adobe Acrobat','Win7') ,('B2',2,'CTW','Adobe Acrobat','Win7') ,('B3',3,'CTW','Adobe LT','Win7') ,('B4',3,'CTW','Adobe Acrobat','Win7') ,('A1',2,'CTW','Adobe Acrobat','Win7') ,('A2',2,'CTW','Adobe LT','Win7') ,('A3',2,'CTW','Adobe Acrobat','Win7') ,('X4',3,'CTW','Adobe Acrobat','WinXP') ,('X1',2,'CTW','Adobe Acrobat','WinXP') ,('X2',2,'CTW','Adobe LT','WinXP') ,('X3',2,'CTW','Adobe Acrobat','WinXP') ,('A4',2,'CTW','Adobe Acrobat','Win7'); SELECT Site, OS, SoftwareName, Sequence, COUNT(SoftwareName) as 'Count' into #SiteSpecific FROM @t group by Site, OS, SoftwareName, Sequence; WITH PCapps AS ( SELECT DISTINCT Computer, Sequence, Site, SoftwareName, OS FROM @t ) SELECT DISTINCT PC.SoftwareName, PC.Sequence, PC.Site, PerSeq.[Count] as 'Win7Installs/seq', PerSite.[Count] as TotWin7apps, total.[Count] as TotalInstalls FROM PCapps pc inner join (select SoftwareName, Sequence, OS, sum([Count]) [Count] from #SiteSpecific group by SoftwareName, Sequence, OS) PerSeq on PerSeq.SoftwareName = pc.Softwarename AND PerSeq.Sequence = pc.Sequence AND PerSeq.OS = pc.OS inner join (select SoftwareName, Site, OS, sum([Count]) [Count] from #SiteSpecific group by SoftwareName, Site, OS) PerSite on PerSite.SoftwareName = pc.Softwarename AND PerSite.Site = pc.Site AND PerSite.OS = pc.OS inner join (select SoftwareName, sum([Count]) [Count] from #SiteSpecific group by SoftwareName) Total on Total.SoftwareName = pc.Softwarename where Pc.OS='Win7' order by SoftwareName, Sequence, Site </code></pre>
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    1. COI included my answer with my question based on your initial comment to create #temp tables. It runs each sub-query once and then joins it all together to quickly display the results. Thanks!
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