Mandatory fields and table hierarchies

If you have a table hierarchy, and there is a mandatory field in the child table, your data may become inconsistent in some cases. For example, there are 2 tables ( TestDog extends TestAnimal ): Let's make TestDog.OwnerName field mandatory and create a record in TestDog with blank OwnerName : A warning is shown, which is correct. Now let's close the form. Normally, you would expect a dialog "Changes have been made in the form. Save changes? Yes/No" . But in our case, the records...(read more)