Validating birthdate to be greater than 18 years
This happened only in our production environment (not staging, development or test) and when we manually tested a number of dates, a user who was 18 years and 7 days old could sign up, but a user who was 18 years and 6 days old could not. We didn't see the problem in any other environments because they get restarted so frequently.
If you like to offer an input field for the birthdate you have to add it on the forms field page.
Add it from the available Fields on the right int the left area.
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You can vet or validate data in Access desktop databases as you enter it by using validation rules.
You can use the expression builder to help you format the rule correctly.
It comes with a bunch of useful validation methods like required, email, url, date, etc.
j Query Validation does not have a standard method to require a minimum age for a field but it is easy to create a custom validation method.