Rick_Cale_at_teamhealth.com wrote:
>
> Hi,
>
> If I have a function based index such as
> CREATE INDEX emp_idx01 on emp(SUBSTR(first_name,1,20))
>
> Is there a way to build index where 1,20 portion can be parameterized? If
> so how would this be done?
>
> Thanks
> Rick
>
No. The function is simply applied to the column when the index is
created, so it's fairly 'static'. My guess is that the index could
possibly be used for a search on substr(first_name, 1, 10), à la like
'something%' but I have not tried it.
--
Regards,
Stephane Faroult
Oriole Software
--
Please see the official ORACLE-L FAQ: http://www.orafaq.com
--
Author: Stephane Faroult
INET: sfaroult_at_oriole.com
Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051
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Received on Tue Apr 09 2002 - 14:48:28 CDT
