Re: Is there any smart way to do the following thing ?

If you just want the user to see how many rows will be returned the simple thing would be to use the Count Hits menu option in the default forms menu. This will count the number of rows before retrieving them.

Hope this helps.

Jose Luis Perez Garcia wrote:

> Hi everybody !!
>
> We have a Dev2k Form that makes a query based on a parameters
> that the user can select. The query can return a great number of rows,
>
> so we want to guess the cardinality of the query before throw it.
>
> Is there any smart way to do it ?
> SELECT count(*) ... it doesn't seems very efficient !!
> We are working with Oracle 7.3.3, maybe working with histograms ?
>
> I'll be very grateful with the all your solutions !!
>
> Thanks in advance !!
>
> Kind Regards from Barcelona.
>
> PD
> Please post me the reply also by e-mail
>
> ===================================================
> Jose Luis Perez Garcia || jlpg_at_geocities.com
> || perezjl_at_mx2.redestb.es
> ===================================================
> http://www.geocities.com/SiliconValley/Pines/4148/
> http://www.redestb.es/personal/perezjl/
> ===================================================
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--
David Fenton
Geopower Technologies Inc
http://www.geopower.com Received on Mon May 25 1998 - 07:55:19 CDT