Re: Quick question re outer joins

  • From: jo_holvoet@xxxxxxxx
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Fri, 23 Jul 2004 16:21:33 +0200

If it's 1 to N, it can find multiple corresponding rows instead of just 
one.

mvg/regards

Jo






Nuno Souto <dbvision@xxxxxxxxxxxxxxx>
Sent by: oracle-l-bounce@xxxxxxxxxxxxx
07/23/2004 16:06
Please respond to oracle-l

 
        To:     oracle-l@xxxxxxxxxxxxx
        cc: 
        Subject:        Re: Quick question re outer joins


jo_holvoet@xxxxxxxx apparently said,on my timestamp of 23/07/2004 6:50 PM:

> If the relationship to the new table is 1-N, it could potentially add 
rows 
> just like a regular join, couldn't it ?

How?
If it finds a corresponding row, it puts its column value in the output.
If it doesn't, it puts a NULL there.  How can that add rows?

-- 
Cheers
Nuno Souto
in sunny Sydney, Australia
dbvision@xxxxxxxxxxxxxxx
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