As long as you stick to either (a) or (b) you will be okay ... if you mix-n-match that will make Oracle do more work.
 
Raj
______________________________________________________

Rajendra Jamadagni              MIS, ESPN Inc.

Rajendra dot Jamadagni at ESPN dot com

Any opinion expressed here is personal and doesn't reflect that of ESPN Inc.

QOTD: Any clod can have facts, but having an opinion is an art!

-----Original Message-----
From: Shantanu Datta [mailto:[EMAIL PROTECTED]]
Sent: Monday, September 30, 2002 3:58 AM
To: Multiple recipients of list ORACLE-L
Subject: Does the case of an Oracle query statement affect query performance?

Hi,
    Pardon me for such a naive question, coz I am a novice when it comes to Oracle. This is basically got to do with how Oracle parses a query.
 
    Consider the following queries:
 
a)    SELECT column1, column2 FROM table WHERE column0 = 5;
 
b)    SELECT COLUMN1, COLUMN2 FROM TABLE WHERE COLUMN0 =5;
 
    Scenario 1: I use the naming convention a) for ALL my queries
 
    Scenario 2: I use the naming convention b) for ALL my queries
 
    Will there be any difference in the execution time of the same queries in Scenario 1 vs 2?
   
Thanx in advance,
Shantanu.
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