4 May
2001
4 May
'01
11:15 a.m.
Is there a defined format for ISBN numbers and a way to validate them? It would be nice to add a trigger to that field to automatically validate new values and reject incorrect numbers...
Yes, I have something somewhere that describes how to calculate the check digit. And a Tcl script that does it...
..Adrian
--
Dr Adrian F Clark http://esewww.essex.ac.uk/~alien/
alien@essex.ac.uk -- VOICE: +44 1206 872432 -- FAX: +44 1206 872900
Dept ESE, University of Essex, Wivenhoe Park, Colchester, C04 3SQ, UK