Quick question re outer joins
- From: Nuno Souto <dbvision@xxxxxxxxxxxxxxx>
- To: Oracle L <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 23 Jul 2004 18:35:06 +1000
Hi folks. This is a quickie, but potentially nasty:
Imagine a table query, returning a given number of rows.
Now, add an outer join to another table and return a
column from that other table. NO additional query predicates
other than the outer join one.
Is there any way the number of rows returned from
the query would change?
AFAIK, an outer join does NOT add or subtract
rows from a result set. True?
--
Cheers
Nuno Souto
in sunny Sydney, Australia
dbvision@xxxxxxxxxxxxxxx
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