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Home -> Community -> Mailing Lists -> Oracle-L -> Re: count(*)
If the table has a primary key, you can also combine the parallel hint with
index_ffs on that primary key which is by far the fastest way of doing count(*).
On 2002.09.19 16:18 "Suri, Deepak" wrote:
> I have in the past used parallel hints to speed up a count(*) kind of full
> table scan query.
>
> thanx
> deepak
>
> -----Original Message-----
> [mailto:Rishi.Jain_at_VerizonWireless.com]
> Sent: Thursday, September 19, 2002 2:28 PM
> To: Multiple recipients of list ORACLE-L
>
>
> Hi Gurus,
>
> In one of our insert intensive application we are inserting around 3-4
> million rows / hour. Also this app needs to do a count(*) of the tables
> every 10 minutes for verifying some application based logic. This is really
> killing us and it takes a lot of time.
>
> Can you please guide me to a direction ( built in functions or something
> similar).
>
> Actually this app is being ported from Informix. Informix can somehow keep a
> trak of the count(*) of a table in its header somewhere.
>
> And yes I have tries count(1) , count(indexed_column) etc.
>
>
> Thanks In Advance.
>
> R.h
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> --
> Author:
> INET: Rishi.Jain_at_VerizonWireless.com
>
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> Author: Suri, Deepak
> INET: DSuri_at_oxhp.com
>
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-- Mladen Gogala -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mladen Gogala INET: mgogala_at_adelphia.net Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Thu Sep 19 2002 - 20:28:19 CDT
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