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Materialize hint

Materialize hint

2004-12-29       - By Connor McDonald

Reply:     1     2     3     4     5     6     7     8     9  

SQL > with myrows as (select rownum i from all_objects@(protected) where rownum < 10)
2 select a.*,b.* from myrows a,myrows b;

I I
-- ---- -- -- ---- --
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 1
9 1
1 2
2 2

...

SQL > select * from v$version;

BANNER
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- -----
Oracle9i Enterprise Edition Release 9.2.0.5.0 - Production
PL/SQL Release 9.2.0.5.0 - Production
CORE 9.2.0.6.0 Production
TNS for Solaris: Version 9.2.0.5.0 - Production
NLSRTL Version 9.2.0.5.0 - Production


--- jaromir nemec <jaromir@(protected) > wrote:

> Hi,
>
> > In reverse order, the "with " clause names
> > and defines a subquery before its use in
> > a query - a bit like a macro in C.
>
>
>
> I 'd see very valuable a constellation with "*distributed* subquery
> factoring ". I found no restriction on this in documentation, but have no
> luck using it (on 9.2.0.5)
>
>
>
>
>
> SQL > with myrows as (select rownum i from dba_objects@(protected) where rownum <
> 1000)
>
> 2 select a.*,b.* from myrows a,myrows b;
>
> with myrows as (select rownum i from dba_objects@(protected) where rownum < 1000)
>
> *
>
> ERROR at line 1:
>
> ORA-00604 (See ORA-00604.ora-code.com): error occurred at recursive SQL level 1
>
> ORA-00933 (See ORA-00933.ora-code.com): SQL command not properly ended
>
>
>
> Is it a bug or a restriction?
>
>
>
> Regards
>
>
>
>
>
> Jaromir D.B. Nemec
>
> http://www.db-nemec.com
>
> -- -- Original Message -- --
> From: "Jonathan Lewis " <jonathan@(protected) >
> To: "oracle-l " <oracle-l@(protected) >
> Sent: Monday, December 27, 2004 6:41 PM
> Subject: Re: Materialize hint
>
>
>
>
> --
> http://www.freelists.org/webpage/oracle-l
>


=====
Connor McDonald
Co-author: "Mastering Oracle PL/SQL - Practical Solutions "
ISBN: 1590592174

web: http://www.oracledba.co.uk
web: http://www.oaktable.net
email: connor_mcdonald@(protected)

Coming Soon! "Oracle Insight - Tales of the OakTable "

"GIVE a man a fish and he will eat for a day. But TEACH him how to fish, and...he will sit in a boat and drink beer all day "

-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --

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