hi How i implement inheritance in tables on a relational database? for example i have the members class that is a super class and it has only user name attribute.my child classes are:admin_users and other_users that derived from members super class.these child classes consists of password attribute for that user.i want to know each work must be done: implement this hierarchy in one table in database or each class must has own table. thanks a lot.
ORM
Members
{id,Name}
User
{MemberId}
UserType
UserType{Id, Type}
var
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