私は非常に乱雑なクエリを持っています。サブクエリを分離/簡略化する方法があるかどうか、知りたいと思います。私はこの容疑者のように見える!! http://weblogs.sqlteam.com/jeffs/archive/2005/12/14/8546.aspx大規模なグループ化と左内ジョインの簡素化
;with
cte_biggie ([Full Date], [Year Entered], [Month Entered], [Day Entered],
[DOW], [Week Ending] ,[CountAccns],[Sales Rep], [MLNPI], [IMSNPI], [Physician],
[Practice Code], [MLIS Code], [Practice Name],
[Date Established], [Address], [Address2], [City], [State], [Status]
) as (
select CONVERT(VARCHAR(8), [DATE entered], 1),DATEPART(yy, [DATE entered]) ,
LEFT(DATENAME(MONTH, GETDATE()), 3)
,DATEPART(dd, [DATE entered]),
case when DATEPART(WEEKDAY, [DATE entered])=1 THEN 'Sun'
when DATEPART(WEEKDAY, [DATE entered])=2 THEN 'Mon'
when DATEPART(WEEKDAY, [DATE entered])=3 THEN 'Tus'
when DATEPART(WEEKDAY, [DATE entered])=4 THEN 'Wed'
when DATEPART(WEEKDAY, [DATE entered])=5 THEN 'Thu'
when DATEPART(WEEKDAY, [DATE entered])=6 THEN 'Fri'
when DATEPART(WEEKDAY, [DATE entered])=7 THEN 'Sat'
end,
CONVERT(VARCHAR(8), DATEADD (D, -1 * DatePart (dw,[date entered]) + 6, [date entered]), 1),
count(a.[specimen id]) ,c.salesrep,c.npi,e.npib,[Requesting Physician] ,
a.[practice code],b.[mlis practice id],[practice name],
c.dateestablished , c.practiceaddress1, c.practiceaddress2,c.practicecity,c.practicestate,
b.[Active Inactive]
from quicklabdump a
left outer join qlmlismapping b
on (b.[practice code] = a.[practice code])
left outer join PracticeandPhysician c
on (a.[Requesting Physician]=c.doctorfirstname+' '+c.DOCTORLASTNAME
and a.[practice code]=c.practicecode)
left outer join TestResults d
on a.QuickLabDumpID = d.QuickLabDumpID
left outer join IMSData e
on c.NPI=e.npib
where [Date Entered] <= '20111231'
and [Date Entered] >= '20111201'
group by [DATE entered],DATEPART(yy, [DATE entered]), DATEPART(mm, [DATE entered]),DATEPART(dd, [DATE entered]), a.[practice name],b.[mlis practice id],a.[practice code],
a.[Requesting Physician],c.salesrep,c.dateestablished, c.practicecity,c.practicestate,c.npi,e.npib,c.practiceaddress1 ,c.practiceaddress2,
b.[Active Inactive]
)
select * from cte_biggie
おそらくDATENAME()およびLEFT()関数を使用してCASEブロックをトリミングできます。グループ分けの観点から見ると、個々の標本IDの合計が小計されているようです...何ですか? 「_______あたりの標本ID数」のようなフレーズに分解できれば、サブクエリにカプセル化する必要があるものを把握するのに役立ちます。 – lyrisey