What does the following query find?(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'red')MINUS(SELECT DISTINCT r.sidFROM boats b, reserves rWHERE b.bid = r.bidAND b.color = 'green')

TRUE ANSWER : ?
YOUR ANSWER : ?

Find the name of those cities with temperature and condition whose condition is either sunny or cloudy but temperature must be greater than 70oF.

TRUE ANSWER : ?
YOUR ANSWER : ?

What is a view?

TRUE ANSWER : ?
YOUR ANSWER : ?