Re: query rewrite
- From: Marcin Przepiorowski <pioro1@xxxxxxxxx>
- To: kylelf@xxxxxxxxx
- Date: Wed, 30 Dec 2009 08:49:03 +0000
On Wed, Dec 30, 2009 at 6:19 AM, kyle Hailey <kylelf@xxxxxxxxx> wrote:
>
> one difference -
> the first query will break if the correlated sub query returns more than
> one value where as the second query will return the mulitple rows.
>
>
Hi Kyle,
I have spend last 2 weeks working with query as in 1 example
and subquery never has been pushed into FROM section.
My general execution plan in 10.1.0.4 looks like this
SELECT STATEMENT
TABLE ACCESS - X - or join of more then one table
SORT
TABLE ACCESS - F - or join of more then one table
or
SELECT STATEMENT
TABLE ACCESS - X - or join of more then one table
FILTER
TABLE ACCESS - F - or join of more then one table
regards,
Marcin Przepiorowski
http://oracleprof.blogspot.com/
Other related posts:
