Can anyone help me for this question?
Investigate the following schemas in a Relational Database: BusRoutes(routeid: integer departurecity: string, arrivalcity: string, distance: integer, departuredate: time, arrivaldate: time) Bus(busid:integer busname: string, bustype:string, busdistance: integer) Drives driverid: integer husid integert) Drivers(driverid: integer name: string, salary: integer) The underlined attributes are primary keys on that relation The Drives relationship stores the information of which driver can drive (is eligible to drive) which bus Write the Relational Algebra statements (queries) that are going to give the answers to the
OR
OR