Re: WHERE 1 = 1 (any info on this)

AFAIK, it has two origins:

1- To make editing text sql scripts easier, in terms of alignment between the predicates.

2- As a trick to enhance the WHERE clause in blocks in Forms, very old versions.

Other than that never heard it made the slightest difference to the CBO.
Cheers
Nuno Souto
nsouto_at_optusnet.com.au
----- Original Message -----
>
> "the 1=1 is in there to avoid doing repetitive index scans for single
> rowids, when the app "knows" the result set is going to be manipulated
> rowid's for a large subset of the table. I would guess your DUAL/CBO example
> had some similar effect."
>
> Is anyone familiar enough with this tweak to explain it ?
>

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-- 
Author: Nuno Souto
  INET: nsouto_at_optusnet.com.au

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