June 6, 2007 at 12:49 pm
Hi, I need to create 3 separate indexes on a very large database table. I have the code :
CREATE INDEX shgidx_MPVEVisitType ON MriPatientVisitEvents (VisitType) WITH FILLFACTOR = 90 ON [PRIMARY]
GO
CREATE INDEX shgidx_MPVEVisitDateTime ON MriPatientVisitEvents (VisitDateTime) WITH FILLFACTOR = 90 ON [PRIMARY]
GO
CREATE INDEX shgidx_MPVEVisitAccountNumber ON MriPatientVisitEvents (VisitAccountNumber) WITH FILLFACTOR = 90 ON [PRIMARY]
GO
Can I make this run faster? Is there a way to create all 3 at the same time running the query once?
thanks,
June 6, 2007 at 12:56 pm
You'll need 3 statements to perform this action
- one way to speed it up might be to put your indexes on another disk as the rest of your data.
- maybe (depending on the available size of tempdb) you can use sort_in_tempdb parameter to make it go faster a create/maintenance time. Check BOL
CREATE INDEX shgidx_MPVEVisitType ON MriPatientVisitEvents (VisitType) WITH (FILLFACTOR = 90 , SORT_IN_TEMPDB = ON ) ON [PRIMARY]
Johan
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June 6, 2007 at 5:33 pm
> Is there a way to create all 3 at the same time running the query once?
To create an index SQL Server needs to scan all values in the column(s).
The only point to have index is to avoid scans.
So I don't see any point of creating index(es) on fly.
Do you?
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June 6, 2007 at 7:24 pm
I think that she needs help on the fact that building a single index on a very large table takes a lot of time VS a course on why to build indexes.
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