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08.19.2008 at 04:44AM PDT, ID: 23659182
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7.8

HT manage numeric keys in a varchar field (MS SQL 2000)

Asked by ottenm in MS SQL Server

In the table customers I have a primary key named customer_code.  It's a varchar, and most of the codes are of the form "[letter][number}" (A56, Y1234, etc.)

A new need has arisen to generate numeric PK's for this field.  How can I find the largest *digits-only* integer in the table?  Because it's varchar data, I want to ignore anything that can be converted to a number that is not digits only (patterns that contain D's, or E's, periods, ...... anything that lets the data pass IsNumeric(), or ToNumeric(), or whatever the varchar-to-int function is.

Thanks for any help-Start Free Trial
[+][-]08.19.2008 at 04:45AM PDT, ID: 22258853

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[+][-]08.19.2008 at 05:00AM PDT, ID: 22258948

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[+][-]08.19.2008 at 05:28AM PDT, ID: 22259115

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[+][-]08.19.2008 at 05:29AM PDT, ID: 22259121

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About this solution

Zone: MS SQL Server
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Solution Provided By: angelIII
Participating Experts: 1
Solution Grade: A
 
 
[+][-]08.19.2008 at 05:34AM PDT, ID: 22259149

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