RE: translate question

From: Kevin Lange <kgel_at_ppoone.com>
Date: Wed, 27 Jun 2001 13:24:16 -0700
Message-ID: <F001.0033AC1A.20010627124705@fatcity.com>

The first part ....

        translate(lpad(NBR,9,'0'), '0123456789','----------') = '---------'

checks to see if the string is ENTIRELY made up of numbers. And it also assumes there is at least 1 character in the string (using lpad of 9 instead of 10)

The second part .....

        NBR between 1 and 199999999)

checks to see if the number is between 1 and 199999999

-----Original Message-----
Sent: Wednesday, June 27, 2001 1:17 PM
To: Multiple recipients of list ORACLE-L

I've got this check constraint on a column (NBR) (which is actually a VARCHAR2(10)).

 translate(lpad(NBR,9,'0'),         '0123456789','----------') =
 '---------'        and    NBR between 1 and 199999999)

As far as I can see it's left padding the string with 0's to a length of 9, translating all numeric characters to '-', doing something else (= ' ---------') and testing to see if the resulting string is between 1 and 199999999.

Obviously I'm missing something here. Anyone care to enlighten me? I'm just documenting it, not designing it.

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  INET: tday6_at_csc.com

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Author: Kevin Lange
  INET: kgel_at_ppoone.com

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To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Wed Jun 27 2001 - 15:24:16 CDT