Implementing the sql query

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Reference no: EM1321876

The following relations keep track of the airline flight information:

Flights (flno: integer, from: string, to: string, distance: integer, departs: time, arrives: time, price: real), Aircraft(aid: integer, aflame: string, cruisingrange: integer), Certifled( eid: integer, aid: integer), Employees( eid: integer, ename: string, salary: integer).

Note that the Employees relation describes pilots and other kinds of the employees as well; every pilot is certified for some aircraft, and only pilots are certified to fly. Write down each of following queries in SQL.

Reference no: EM1321876

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