Question
PLEASE HELP ME WITH THIS THE SQL IS BEEN HARD FOR ME I JUST NEED A BETTER UNDERSTANDING OF THIS SO IF I HAVE SOMETHING
PLEASE HELP ME WITH THIS THE SQL IS BEEN HARD FOR ME I JUST NEED A BETTER UNDERSTANDING OF THIS SO IF I HAVE SOMETHING TO REFER TO THAT WOULD BE HELPFUL WHEN YOU COMPLETE THIS COULD YOU MAYBE LEAVE NOTES? THANK YOU SO MUCH TO WHOEVER HELPS ME!
SQL Queries
Consider the Drivers-Cars-Reserves DB for a small rental car company:
Drivers(id, name, rating, age)
Cars(vin, maker, model, year, color)
Reserves(did, vin, date)
Give SQL and Relational Algebra expression for each of the following operations:
Find the colors of cars reserved by Smith.
Find all ids of drivers who have a rating of at least 7 or reserved car with VIN:1HGCM82633A004352
Find the names of drivers who have not reserved a red car.
Find the driver ids of drivers with age over 21 who have not reserved a red car.
Find the names of drivers who have reserved at least two cars.
Find the driver ids of all drivers whose rating is better than some driver called Bob.
Find the driver ids of all drivers whose rating is better than every driver called Bob.
Find the driver ids of all drivers with the highest rating.
Find the names of drivers who have reserved all cars.
Find the names of drivers who have reserved all red cars.
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