Consider a table FLIGHT with the schema FLIGHT(flight_name, source, destination, hub, operator). If for some reason, there is a possibility that a flight can have two or more hubs, then what would be the key for FLIGHT table?
A. flight_name, source, destination
B. flight_name, source, hub, destination
C. hub, flight_name, source
D. flight_name, source, destination, operator
Answer:B
Consider a table FLIGHT with the schema FLIGHT(flight_name, source, destination, hub, operator). If for some reason, there is a possibility that a flight can have two or more hubs, then what would be the key for FLIGHT table?
A. flight_name, source, destination B. flight_name, source, hub, destination C. hub, flight_name, source D. flight_name, source, destination, operator