× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. MIDRANGE-L
  3. September 2012

Constraint based upon a separate file

I know how to add a typical check constraint where it ensures that the
value matches a short list of codes, etc. I have been searching for the
past few hours to no avail for an example that shows how to add a check
constraint based upon the value in a separate file:

Quick and dirty example would be a state field of two characters that has
to match a predfined table of state abbrev's or a zipcode lookup table...

Does anyone have any examples I can reference? I have been all over the
reference manual and so far haven't found what I'm looking for.

Thanks,

C


As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.