Hi,
When I pass a date time parameter the stored procedure takes about 45
seconds, when I hard code the parameter it returns in 1 second. How can
I rewrite my stored procedure?
@createddatelow er datetime
WHERE dbo.tblCaseHist ory.eventdate > dateadd(d,-7,@createddatel ower )
AND dbo.tblCaseHist ory.eventdate < dateadd(d,-6,@createddatel ower ) (45
seconds)
vs.
WHERE dbo.tblCaseHist ory.eventdate > dateadd(d,-7,'11/15/05') AND
dbo.tblCaseHist ory.eventdate < dateadd(d,-6,'11/15/05') (1 second)
thanks for your help,
Paul
5  2870 
Do you get the same (correct) result with both queries?
Yes, the result is the same
I've read that perhaps the sp is not using the index. The table i'm
searching is a joined table in the sp...Do you know how i can force it
to use the index? Then name of the index is IndexDate
thanks,
Paul
>Do you know how i can force it to use the index?
Check out "forceplan" as in:
set forceplan on
Paul,
Your stored procedure could benefit from parameter sniffing if you
change the local variable into a parameter, as in:
CREATE PROCEDURE MyProcedure (@createddatelo wer datetime) AS
...
WHERE eventdate > dateadd(day,-7,@createddatel ower)
...
EXEC MyProcedure '20051115'
HTH,
Gert-Jan
paulmac106 wrote:
Hi,
When I pass a date time parameter the stored procedure takes about 45
seconds, when I hard code the parameter it returns in 1 second. How can
I rewrite my stored procedure?
@createddatelow er datetime
WHERE dbo.tblCaseHist ory.eventdate > dateadd(d,-7,@createddatel ower )
AND dbo.tblCaseHist ory.eventdate < dateadd(d,-6,@createddatel ower ) (45
seconds)
vs.
WHERE dbo.tblCaseHist ory.eventdate > dateadd(d,-7,'11/15/05') AND
dbo.tblCaseHist ory.eventdate < dateadd(d,-6,'11/15/05') (1 second)
thanks for your help,
Paul
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