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Query Optimisation



Re: Query Optimisation Paul Ibison
7/28/2006 12:00:00 AM
sql server replication: Eckhart - there could be loads of issues here, but the first thing I'd check
is that you have a nonclustered index on transactiondate and servicename
together, and also investigate a clustered index on transactiondate if this
is viable. (Also, you might want to try reposting this in the .Programming
group.)
Cheers,
Paul Ibison SQL Server MVP, www.replicationanswers.com

Query Optimisation Eckhart
7/28/2006 1:41:41 AM
Dear All, I am facing a problem with the following query,taking lot of
time to fetch the data,
calling the data using multi selects.

CREATE proc Rolexi36Sync
as
DECLARE @date varchar(50),@ydate varchar(50)
print CONVERT(char(11),(GETDATE()-1),100)
SET @date =3D
substring(CONVERT(char(11),(GETDATE()),100),5,2)+'-'+substring(CONVERT(char=
=AD(11),(GETDATE()),100),1,3)+'-'+substring(CONVERT(char(11),(GETDATE()),10=
0),=AD8,4)

SET @ydate =3D
substring(CONVERT(char(11),(GETDATE()-1),100),5,2)+'-'+substring(CONVERT(ch=
=ADar(11),(GETDATE()-1),100),1,3)+'-'+substring(CONVERT(char(11),(GETDATE()=
-1)=AD,100),8,4)

Print @date
Print @ydate
insert into
biiod.dbo.data_trans_currentday_test(MobileNo,UA,MessageID,ContentID,Descri=
=ADption,MusicLabel,CPID,CPName,ContentType,Category,SubCategory,Transactio=
nDa=ADte,Units,Unitprice,Shortcode,Servicecode,OperatorID,CatID,SubCatID,Sp=
ecialP=ADackage,Royalties,

Operator,Circle,OPGPName)
(select mobileno,
(SELECT CASE ua
when 'unknown' then null
else ua
end) as ua,
(select case remarks
when 'unknown' then null
else remarks
end) as remarks,
contentid,
(select case description
when 'unknown' then null
else description
end) as description,
(select musiclabel from datalogs.dbo.cont_master where contentid =3D
datalogs.dbo.translogs.contentid) as musiclable,
(select cpid from datalogs.dbo.contentprovider where cpname =3D
datalogs.dbo.translogs.cpname) as cpid,
cpname,
contenttype,
(select catname from datalogs.dbo.cont_Catg where catid in (select
catid from cont_master where contentid =3D
datalogs.dbo.translogs.contentid)) as category,
(select subcatname from datalogs.dbo.cont_subCatg where subcatid in
(select subcatid from cont_master where contentid =3D
datalogs.dbo.translogs.contentid)) as subcategory,
transactiondate,1 as Units, price,
(select case servicename
when 'AIRTELIVE' then remarks
when 'ALCOMBOPACKREG' then remarks
when 'HINDI' then remarks
when 'NOKIAGAL' then remarks
when 'SUDOKU' then remarks
when 'SUDOKU_APP' then remarks
else NULL
end) as SHORTCODE,
servicename,
(select case servicename
when 'TSTTNEWS' THEN 600
when 'TSTTWAP' THEN 600
when 'TSTT_MMS' THEN 600
when 'AKTEL' THEN 300
when 'TELEMOVIL' THEN 700
when 'COMCEL' THEN 701
when 'QATAR2900' THEN 1
ELSE
(select operatorid from datalogs.dbo.operator where phoneseries =3D
substring(datalogs.dbo.translogs.mobileno,1,len(phoneseries)))
end) as operatorid,
(select catid from datalogs.dbo.cont_master where contentid =3D
datalogs.dbo.translogs.contentid) as catid,
(select subcatid from datalogs.dbo.cont_master where contentid =3D
datalogs.dbo.translogs.contentid) as subcatid,
(select specialpackage from datalogs.dbo.cont_master where contentid =3D
datalogs.dbo.translogs.contentid) as specialpackage,
(select Royalties from datalogs.dbo.cont_master where contentid =3D
datalogs.dbo.translogs.contentid) as Royalties,
(select case servicename
when 'AKTEL' then 'Aktel'
when 'QATAR2900' then 'STAR MULTIMEDIA 2900'
when 'TELEMOVIL' then 'TeleMovil'
when 'COMCEL' THEN 'COMCEL'
when 'TSTTNEWS' then 'TSTT'
when 'TSTTWAP' then 'TSTT'
when 'TSTT_MMS' then 'TSTT'
when 'ALCLICKWIN6464' then 'Airtel'
when 'ALMMSPORTAL' then 'Airtel'
when 'ALMMSSMSDWN' then 'Airtel'
when 'ALMYALBUM646' then 'Airtel'
when 'HINDU6397' then
substring(remarks,1,PATINDEX('%.6397.%',remarks)-1)
else
(select OPname from datalogs.dbo.operator where phoneseries =3D
substring(datalogs.dbo.translogs.mobileno,1,len(phoneseries)))
end) as Operator,
(select case servicename
when 'AKTEL' then 'Bangladesh'
when 'QATAR2900' then 'STAR MULTIMEDIA 2900'
when 'TELEMOVIL' then 'El Salvador'
when 'COMCEL' THEN 'Gautemala'
when 'TSTTNEWS' then 'Trinidad'
when 'TSTTWAP' then 'Trinidad'
when 'TSTT_MMS' then 'Trinidad'
when 'HINDU6397' then substring(remarks,PATINDEX('%.6397.%',remarks) +
6,len(remarks)-PATINDEX('%-%',remarks))
else
(select Circlename from datalogs.dbo.operator where phoneseries =3D
substring(datalogs.dbo.translogs.mobileno,1,len(phoneseries)))
end) as Circle,
(select case servicename
when 'AKTEL' then 'Aktel'
when 'QATAR2900' then 'STAR MULTIMEDIA 2900'
when 'TELEMOVIL' then 'TeleMovil'
when 'COMCEL' THEN 'COMCEL'
when 'TSTTNEWS' then 'TSTT'
when 'TSTTWAP' then 'TSTT'
when 'TSTT_MMS' then 'TSTT MMS'
when 'ALCLICKWIN6464' then 'Airtel Click Win 646'
when 'ALMMSPORTAL' then 'Airtel MMS'
when 'ALMMSSMSDWN' then 'Airtel MMS SMS'
when 'ALMYALBUM646' then 'Airtel My Album'
when 'HINDU6397' then 'Hindu 6397'
else
(select OPname from datalogs.dbo.operator where phoneseries =3D
substring(datalogs.dbo.translogs.mobileno,1,len(phoneseries)))
end) as OPGPName
from datalogs.dbo.translogs where transactiondate >=3D @ydate and
transactiondate < @date and servicename in
('AIRTELMMS_SUB','ALMYALBUM646','HINDU6397','MTV','QATAR2900','SIFY'))
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