![]() In the example below, we will apply this rule to our Customers table. This would prevent users from typing something that wasn't actually a real state postal code. For example, if we were asking users to input a state name into a table with contact information, we might create a rule that limits the valid responses to U.S. ![]() When a validation rule is in place, it is impossible for a user to enter data that violates the rule. The character limit for the field will be set.Ī validation rule is a rule that dictates which information can be entered into a field.
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