RA examples
RA examples. Let’s build a Family DB. Describe a person by it’s name, year and day of birth and gender: Person( Name , Byear , Bday , gender);. ERD. Name. Bday. Byear. Gender. Person. ERD. Let’s add parents: Parent( Cname , Cyear , Cday , Role , Pname , Pyear , Pday ) (.
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