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Instructions . When writing a query, write the query in a way that it would work over all possible database instances and not just for
Instructions . When writing a query, write the query in a way that it would work over all possible database instances and not just for the given example instance! Consider the following database schema and example instance for a race car database: Good luck Question IV 15 Points) Write a relational algebra expression that returns the female racer's name, born before 1962 with the highest race time. Car Racer A ID Name 1 Sam 2 Suzan 3 Alice Gender Birth_yead M 1984 F 1982 F 1980 CID Manufacturer Horsepower Nbr of cylinder C1 Mercedes 1200 6 s 02 Ferrari 2400 8 03 Mercedes 800 4 Result Race Result IDC_ID R_ID A ID Time R1_1 C1R11 400 R1 2 c2 R1 2 600 R1 3 03 R13 375 R ID Type Location R1 F1 UK R2 Rallycross Portugal R3 F1 USA Sponsor RID R1 R1 R2 CID Sponsor C1 Motorola Pepsi Michelin Question V 15 Points) Write a relational algebra expression that returns the racer's name and associated ncc sponsor that crave a 'Mercedes car during at cast one of their races. Schema: Racer: (A ID, Name, Gender, Birth year) Race (R ID, Type, Location) Result Result.ID, C_ID, A_ID, R_ID, Time) C_ID is a foreign key for car and A_ID is torcign key for Racer and R_ID is a foreign key for Race Sponsor (R ID.C ID, Sponsor) Car (C_ID, Make, Horsepower Question VI 14 points) Write a relational algebra expression that return the winner name in each race. The winner is the racer that finishes the race in least time
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