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As far as incrementing, why not use the data type of Row ID, or Identity Column as documented here instead? http://publib.boulder.ibm.com/iseries/v5r2/ic2924/info/sqlp/rbafymst79.htm http://publib.boulder.ibm.com/iseries/v5r2/ic2924/info/sqlp/rbafymst80.htm I'm not a big fan of composite keys. Just makes querying that much more complicated. As far as numeric and alphanumeric goes, I don't care. But, if you plan on peddling that package, alphanumeric might be the way to go. That way potential customers can convert their data, if their data is stored alphanumeric. And if you are not planning on peddling it, you might acquire another company that uses alphanumeric. Rob Berendt -- Group Dekko Services, LLC Dept 01.073 PO Box 2000 Dock 108 6928N 400E Kendallville, IN 46755 http://www.dekko.com "Tim Kredlo" <TKredlo@xxxxxxxxxxxxxxxx> Sent by: midrange-l-bounces@xxxxxxxxxxxx 08/16/2004 12:34 PM Please respond to Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx> To <MIDRANGE-L@xxxxxxxxxxxx> cc Fax to Subject Numeric vs. alpha keys - reasons List, I am creating a new G/L account master file layout where the unique key will be a composite field comprised of fields that contain only digits. The other day a post to the list contained a blurb that indicated it was a common feeling that numeric keys were undesirable. It said something like: 'I know, I know, numeric keys - bad stuff'. (My apologies to the poster for poor paraphrasing.) I can see plenty of reasons 'pro' numeric (easy incrementing, for one) but I don't see what the downside reasons would be. Could I get some feedback regarding the numeric vs. alphameric decision to be made here. Thanks in advance for any provided insights. Tim Kredlo Exterior Wood, Inc. -- This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options, visit: http://lists.midrange.com/mailman/listinfo/midrange-l or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.
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