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We have a winner!!

Thanks everyone :)



-----Original Message-----
From: Charles Wilt [mailto:charles.wilt@xxxxxxxxx]
Sent: Friday, May 04, 2018 2:14 PM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: Re: Better SQL performance than SUBSTRING

​drop the "table" before the table name...

​ create index MY_TABLE_SUBSTRING on MY_TABLE
(SUBSTRING(MY_COLUMN,5,6))

Charles



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