Re: Extraction problem

I'd do a loop, counting each record. When the prefix changed, I'd write a record with the prefix and (99999 - count). Also, just because its so easy, I'd make a third column called "% full" and ((divide the count by 99999) * 100). In the end I would have a list of each prefix and a sense of the sparseness of the matrix.

Then, I might do a follow-on report, by prefix.

David Foxwell wrote:

yes!
----- Original Message -----
From: "Booth Martin" <booth@xxxxxxxxxxxx>
To: "RPG programming on the AS400 / iSeries" <rpg400-l@xxxxxxxxxxxx>
Sent: Wednesday, October 03, 2007 5:06 PM
Subject: Re: Extraction problem

In looking at the size of the resulting answers it occurs to me that you
might prefer an interim step of a list of all prefixes in use, and the
quantity of numbers available for each prefix?

David Foxwell wrote:

Hi,

I have a file with catalogue numbers like this : AA00001 to ZZ99999.

Is there a neat way to extract all the numbers available ( not being

used ) for a given prefix ?

eg, the list of numbers available between PE00020 and PF99290, list of

numbers with prefix AZ.

Thanks

--
---------------------------------
Booth Martin
http://www.Martinvt.com
---------------------------------

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