Comments on: Luhn Digit Generation Oracle PL/SQL Implementation

By: andrej

andrej — Fri, 19 Nov 2010 09:23:42 +0000

I am sorry…it is working fine. I just forgot to cut last digit, when i checked number of card.

By: andrej

andrej — Thu, 18 Nov 2010 16:54:12 +0000

Strange, but this function said that luhn is not valid for some card numbers….

By: Johnson

Johnson — Mon, 08 Mar 2010 10:15:40 +0000

Thanks for your sharing, it’s great.

By: Ferg

Ferg — Thu, 25 Feb 2010 12:06:23 +0000

Thanks for the code, but I used this on a DB of ICCIDs (GSM SIM Card identifiers) and it found some inconsistencies (70 out of 3million)
e.g 8941020551329001200 should have checksum 3, but this PL/SQL returned 4?

By: Bilal

Bilal — Mon, 01 Feb 2010 00:24:06 +0000

Thanks. It worked and saved me time.

By: Malcolm Speedie

Malcolm Speedie — Wed, 02 Dec 2009 05:28:20 +0000

Thanks for the sample, it saved me some time.

Since you are processing a string you might want to check for a value_error on the implicted numeric conversion or do a translate to only get digits.