RE: Query failing in CBO mode

From: Jamadagni, Rajendra <Rajendra.Jamadagni_at_espn.com>
Date: Wed, 26 Feb 2003 05:28:59 -0800
Message-ID: <F001.00559E44.20030226052859@fatcity.com>

Okay ... Rule Number 1.

Always convert the data type of the *variable value* to that of table column you are comparing with, and not the other way. The later part causes the problem.

Raj

---

Rajendra dot Jamadagni at espn dot com
Any views expressed here are strictly personal. QOTD: Any clod can have facts, having an opinion is an art !!

-----Original Message-----
Sent: Wednesday, February 26, 2003 12:19 AM To: Multiple recipients of list ORACLE-L

[ --- ]
ORDER_NO column is varchar2 field and it may be containing some non-numeric data, so I understand that Oracle may be doing implicit conversion on order_no. But, then why it is working fine in RULE based. The explain plan is same in both cases and is using FULL Table access. The table has unique index on ORDER no.

Thanks in advance.
Manmohan

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Author: Jamadagni, Rajendra
  INET: Rajendra.Jamadagni_at_espn.com

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Received on Wed Feb 26 2003 - 07:28:59 CST