Question: Interpret Figure airline ER schema. Develop the relations from the ER diagram. Show the output during each step of the ER-to-Relation algorithm. At the end,
Interpret Figure airline ER schema.
Develop the relations from the ER diagram. Show the output during each step of the ER-to-Relation algorithm. At the end, specify the final set of tables, their keys, and their foreign keys. In the final set of tables, do not specify all the attributes, only the keys and foreign keys.
An ER diagram for an AIRLINE database schema. Airport Code City State (Name DEPARTURE AIRPORT N Leg no AIRPORT Scheduled dep time Scheduled arr time FLIGHT LEG 1 ARRIVAL CAN Instances LEGS AIRPORT LAND Number INSTANCE OF Type name Max seats FLIGHT Airline Company AIRPLANE Arr time Weekdays TYPE DEPARTS 1 FARES Restrictions ARRIVES Dep time Amount TYPE Code FARE Airplane id No of avail Seats Total no of seats Date AIRPLANE 1 ASSIGNED LEG INSTANCE Cphone Customer name Seat no RESERVATION So Notes: A LEG (segment) is a nonstop portion of a flight. SEAT A LEG UNSTANCE is a particular occurrence of a LEG on a particular date
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