RE: Need help rewriting SQL with TRUNC function

Wouldn't this introduce a time-of-day dependency on the result?

Instead, how about:

(trunc(sysdate) - erh.arrival_dt)) > 6 AND

(ie. strictly greater than six days ago)

• Bill.

At 08:30 15/11/01 -0800, you wrote:
>Cherie,
>
>Change the clause as follows
>
>orig ==> (trunc(sysdate) - trunc(erh.arrival_dt)) >= 7 AND
>
>new ==> erh.arrival_dt <= sysdate - 7 AND
>
>Hope this helps!
>
>Tom Mercadante
>Oracle Certified Professional
>
>
>-----Original Message-----
>Sent: Thursday, November 15, 2001 10:00 AM
>To: Multiple recipients of list ORACLE-L
>
>
>
>I think that the following statement is keeping this application from using
>an index in my cost-based execution plan. This is an 8.0.4 database so I
>don't have the option of creating a function-based index.
>
>I'm not that great with SQL. Can anyone help me rewrite this statement so
>that I don't need to use the TRUNC function on this column in blue?
>
> (trunc(sysdate) - trunc(erh.arrival_dt)) >= 7 AND
>
>Thanks,
>
>Cherie Machler
>Oracle DBA
>Gelco Information Network
>
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>Please see the official ORACLE-L FAQ: http://www.orafaq.com
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>Author:
> INET: Cherie_Machler_at_gelco.com
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-- 
Author: Bill Buchan
  INET: wbuchan_at_uk.intasys.com

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