How many rows are returned by the following query? SELECT MIN(Tip)FROM RideDetail rWHERE NOT EXISTS (SELECT * FROM Driver d WHERE d.DID = r.DID AND d.Region != ‘Atlanta’);

Which of the following is/are returned by this query:

For all states of this database, which of the following SQL queries is/are equivalent to this relational tuple calculus query?

How many rows are returned by the following query? SELECT DID FROM DriverMINUSSELECT DID FROM RideDetail;

What DID values are retured by the following query? SELECT DIDFROM DriverWHERE phone LIKE ‘_0%’;

Considering the provided database, after executing the following update statement: UPDATE RideDetail xSET tip = price * 0.1WHERE price > 15; What RID value(s) would be returned by the following query: SELECT RIDFROM Rider rWHERE NOT EXISTS (SELECT * FROM RideDetail x WHERE x.RID = r.RID AND TIP > 4);

Which values are returned from the following nested SQL query? SELECT Dname FROM Driver WHERE DID IN (SELECT DID FROM RideDetail WHERE RID IN (SELECT RID FROM Rider WHERE MemberSince > 2017-01));

How many rows are returned by the following query? SELECT Region FROM DriverUNIONSELECT RnameFROM Rider;

Which query returns the RID of all Riders who have never taken a ride?

How many superkeys are possible for the RideDetail relation?