Setting minimum length of a text field

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Is there a way to set the minimum length of a text field without using a trigger?
for example. I have a field called journal_no varchar2(7), I want to enforce that at least 4 characters are entered.

In order to set a text item to a minimum value, you need to set the format mask.
In my case it was
AAAA
and i was wrong...!!!!
that just limits the number of characters to 4, i want at least 4, back to the drawing board......
Edited by: DM on Jan 27, 2010 11:39 AM

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