
1. Shown below is the relational database schema for a database which contains details regarding bus journeys from Tronoh to various destinations: Busoperator (opCode, opName) Journey(apCode, destinationCode price Destination (destinationCode, destinationName, distance) d. ranslate the following relational algebra expression to SQL’s SELECT statement: Π opName (BusOperator DdopCode (TT op Code (Journey Dd destination de (π destinationCode (O destinationName
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