CASE statement rpoblem

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CASE statement rpoblem

erdem1973

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Points: 1843
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March 19, 2008 at 1:06 am

#74652

Hi Folks,
I really wonder to know how to correct the mistake below.How can I use CASE statement?????
Please help
select b.SiparisNo,
datediff(day,a.dteTeslimTarihi,b.OnayTarihi) as 'Gun Farki',
substring(c.sKodu,1,12) as ModelKodu,
CASE datediff(day,a.dteTeslimTarihi,b.OnayTarihi)
when datediff(day,a.dteTeslimTarihi,b.OnayTarihi)>0 Then 2 else 0
end as
from Coll2005.dbo.tbSiparis a
INNER JOIN
TblReklamasyonOnay_V1 b on a.lSiparisNo=b.siparisno
INNER JOIN
Coll2005.dbo.tbStok c on c.nstokID=a.nstokID and b.ModelNo=substring(c.sKodu,1,12) collate TURKISH_CI_AS
where substring(c.sKodu,1,12) like '8%'
group by b.siparisno,datediff(day,a.dteTeslimTarihi,b.OnayTarihi),substring(c.sKodu,1,12)

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ZeyNep-583656 Valued Member Points: 71 More actions · Answer 1

CASE when datediff(day,a.dteTeslimTarihi,b.OnayTarihi)>0 Then 2 else 0 end

http://transactsql.blogspot.com/

erdem1973 SSCommitted Points: 1843 More actions · Answer 2

erdem1973

SSCommitted

Points: 1843

March 19, 2008 at 4:17 am

#791362

Thank you very much

ChrisM@Work SSC Guru Points: 186127 More actions · Answer 3

erdem (3/19/2008)
Hi Folks,
I really wonder to know how to correct the mistake below.How can I use CASE statement?????
Please help
select b.SiparisNo,
datediff(day,a.dteTeslimTarihi,b.OnayTarihi) as 'Gun Farki',
substring(c.sKodu,1,12) as ModelKodu,
CASE datediff(day,a.dteTeslimTarihi,b.OnayTarihi)
when datediff(day,a.dteTeslimTarihi,b.OnayTarihi)>0 Then 2 else 0
end as
from Coll2005.dbo.tbSiparis a
INNER JOIN
TblReklamasyonOnay_V1 b on a.lSiparisNo=b.siparisno
INNER JOIN
Coll2005.dbo.tbStok c on c.nstokID=a.nstokID and b.ModelNo=substring(c.sKodu,1,12) collate TURKISH_CI_AS
where substring(c.sKodu,1,12) like '8%'
group by b.siparisno,datediff(day,a.dteTeslimTarihi,b.OnayTarihi),substring(c.sKodu,1,12)

Note that TSQL has two types of CASE statement:

1. Simple CASE: CASE datediff(day,a.dteTeslimTarihi,b.OnayTarihi) when 0 then 0 else 2 end

2. Searched CASE: CASE when datediff(day,a.dteTeslimTarihi,b.OnayTarihi)>0 Then 2 else 0 end

^{“Write the query the simplest way. If through testing it becomes clear that the performance is inadequate, consider alternative query forms.” - Gail Shaw}

For fast, accurate and documented assistance in answering your questions, please read this article.
Understanding and using APPLY, (I) and (II) Paul White
Hidden RBAR: Triangular Joins / The "Numbers" or "Tally" Table: What it is and how it replaces a loop Jeff Moden