I agree w/Tom. Use the raise_application_error function when
you want to make the triggering statement fail.
Best regards,
Jonathan Gennick
mailto:[EMAIL PROTECTED] * 906.387.1698
http://Gennick.com * http://MichiganWaterfalls.com * http://MetalDrums.org
Tuesday, June 19, 2001, 1:59:34 PM, Tom Mercadente wrote:
MTF> While you can use any Oracle supplied function within a check constraint,
MTF> you cannot use a self-written function.
MTF> But you can perform the same thing by using a database table trigger on
MTF> the
MTF> table itself. You can basically validate anything you want from any
MTF> schema
MTF> you wish using a database trigger (with some exceptions).
MTF> A pre-insert trigger on the table would work just fine. Check them out
MTF> in
MTF> the documentation.
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Author: Jonathan Gennick
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