Exercise 3.9 Consider the SQL query whose answer is shown in Figure 3.2. Modify this query...

Exercise 3.9 Consider the SQL query whose answer is shown in Figure 3.2.

1. Modify this query so that only the login column is included in the answer.
2. If the clause WHERE S.gpa >= 2 is added to the original query, what is the set of tuples in the answer?