Learning SQL

Appendix C. Solutions to Exercises

Chapter 3

3-1

Retrieve the employee ID, first name, and last name for all bank employees. Sort by last name then first name.

    mysql> SELECT emp_id, fname, lname
        -> FROM employee
        -> ORDER BY lname, fname;
    +--------+----------+-----------+
    | emp_id | fname    | lname     |
    +--------+----------+-----------+
    |      2 | Susan    | Barker    |
    |     13 | John     | Blake     |
    |      6 | Helen    | Fleming   |
    |     17 | Beth     | Fowler    |
    |      5 | John     | Gooding   |
    |      9 | Jane     | Grossman  |
    |      4 | Susan    | Hawthorne |
    |     12 | Samantha | Jameson   |
    |     16 | Theresa  | Markham   |
    |     14 | Cindy    | Mason     |
    |      8 | Sarah    | Parker    |
    |     15 | Frank    | Portman   |
    |     10 | Paula    | Roberts   |
    |      1 | Michael  | Smith     |
    |      7 | Chris    | Tucker    |
    |     18 | Rick     | Tulman    |
    |      3 | Robert   | Tyler     |
    |     11 | Thomas   | Ziegler   |
    +--------+----------+-----------+
    18 rows in set (0.01 sec)

3-2

Retrieve the account ID, customer ID, and available balance for all accounts whose status equals 'ACTIVE' and whose available balance is greater than $2,500.

    mysql> SELECT account_id, cust_id, avail_balance
        -> FROM account
        -> WHERE status = 'ACTIVE'
        ->   AND avail_balance > 2500; +------------+---------+---------------+ | account_id | cust_id | avail_balance | +------------+---------+---------------+ | 3 | 1 | 3000.00 | | 10 | 4 | 5487.09 | | 13 | 6 | 10000.00 | | 14 | 7 | 5000.00 | | 15 | 8 | 3487.19 | | 18 | 9 | 9345.55 | | 20 | 10 | 23575.12 | | 22 | 11 | 9345.55 | | 23 | 12 | 38552.05 | | 24 | 13 | 50000.00 | +------------+---------+---------------+ 10 rows in set ...