मैं आपकी गिनती इकट्ठा करने के लिए पहले सबक्वायरीज़ को एक अस्थायी तालिका में चलाने का प्रयास करूंगा, फिर अपनी कुल गणना खींचूंगा। जिस तरह से आपके पास क्वेरी सेटअप है, वह पीसीएप्स की प्रत्येक पंक्ति के लिए उन सभी उपश्रेणियों को एक बार चलाने जा रहा है, यही कारण है कि इसमें इतना समय लग रहा है।
कुछ इस तरह का प्रयास करें:
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