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Former Member
Nov 29, 2006 at 01:34 PM

field validation

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Hello,

I have a ztable with two fields: from , to.

I have to validate the entries, so that the intervals shouldn't overlap.

Example:

I have the entries:

from to

1 7

12 15

Entry allowed: from: 8 to: 11

Entry denied: from: 13 to: 14

What is the easiest way of doing this?

Thank you!