Usually sub-queries are not the fastest way to do
things.
When a developper is talking about doing things using
cursors the big red light flashes : ho ho 3gl thinking
ahead !
The only way to know for sure is to test them. Do not
just check the elapsed time. I've tested 2 scenarios
once and they were taking the same time but one was
having twice the buffer gets than the other one.
- VIVEK_SHARMA <VIVEK_SHARMA_at_infosys.com> a écrit :
>
> Which is best Joins vs. Sub Queries vs. Cursors if
> all options are possible in a given situation? from
> a performance perspective)
> --
> Please see the official ORACLE-L FAQ:
> http://www.orafaq.com
> --
> Author: VIVEK_SHARMA
> INET: VIVEK_SHARMA_at_infosys.com
>
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Stéphane Paquette
DBA Oracle, consultant entrepôt de données
Oracle DBA, datawarehouse consultant
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Received on Tue Oct 15 2002 - 09:18:52 CDT
