An instance of each of these relations follows. Use the data shown below to (a) write the
Fantastic news! We've Found the answer you've been seeking!
Question:
An instance of each of these relations follows. Use the data shown below to (a) write the answer to each question, and (b) list the relational algebra operation(s) required to obtain the answer.
a. What are the names of all drivers?
b. What are the license numbers of all drivers who have been issued a ticket?
c. What are the license numbers of those drivers who have never been issued a ticket? Hint: Consider the use of the minus operator along with one other relational algebra operator.
d. What are the names of all drivers who have been issued a ticket?
Related Book For
Posted Date: