How to test for all digits in string

From: Woody Mckay <wmckay_at_hydrogenmedia.com>
Date: Thu, 26 Apr 2001 10:30:40 -0700
Message-ID: <F001.002F306B.20010426080555@fatcity.com>

Hello gurus,

Could someone tell me the best way to check a string to ensure that it contains all numeric digits before converting it to a number with to_number? I don't see a function like ISNUM.

TIA, Woody

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Author: Woody Mckay
  INET: wmckay_at_hydrogenmedia.com

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