SQL statement performance question -- JAVA400-L

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Subject: SQL statement performance question
From: Ashish Kulkarni <kulkarni_ash1312@xxxxxxxxx>
Date: Thu, 1 Apr 2004 14:38:29 -0800 (PST)
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Hi
which SQL statement is more efficient

SELECT * FROM mytable

  OR
SELECT A, B, C FROM mytable

Why is it more efficient, 
If there are any articles about writing efficient SQL
querries will really help


Ashish

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