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MySQL Update Table Statement Exercises: Change the email column of employees table with 'not available' for all employees

MySQL Update Table Statement: Exercise-3 with Solution

Write a SQL statement to change the email and commission_pct column of employees table with 'not available' and 0.10 for those employees whose department_id is 110.

Here is the sample table employees.


UPDATE employees 
SET email='not available',
commission_pct=0.10 
WHERE department_id=110;

Let execute the above code in MySQL 5.6 command prompt

See the result. Only two rows have been displayed.

+-------------+------------+-----------+---------------+--------------+------------+------------+----------+----------------+------------+---------------+
| EMPLOYEE_ID | FIRST_NAME | LAST_NAME | EMAIL         | PHONE_NUMBER | HIRE_DATE  | JOB_ID     | SALARY   | COMMISSION_PCT | MANAGER_ID | DEPARTMENT_ID |
+-------------+------------+-----------+---------------+--------------+------------+------------+----------+----------------+------------+---------------+
|         205 | Shelley    | Higgins   | not available | 515.123.8080 | 1987-09-30 | AC_MGR     | 12000.00 |           0.10 |        101 |           110 |
|         206 | William    | Gietz     | not available | 515.123.8181 | 1987-10-01 | AC_ACCOUNT |  8300.00 |           0.10 |        205 |           110 |
+-------------+------------+-----------+---------------+--------------+------------+------------+----------+----------------+------------+---------------+
2 rows in set (0.00 sec)


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Previous: Write a SQL statement to change the email and commission_pct column of employees table with 'not available' and 0.10 for all employees.
Next: Write a SQL statement to change the email column of employees table with 'not available' for those employees whose department_id is 80 and gets a commission is less than .20%.

What is the difficulty level of this exercise?