SQL Exercise: Display the employees whose manager name is JONAS

Last update on December 20 2024 12:00:25 (UTC/GMT +8 hours)

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30. From the following table, write a SQL query to find those employees whose manager is JONAS. Return complete information about the employees.

Sample table: employees

Sample Solution:

SELECT *
FROM employees
WHERE manager_id IN
    (SELECT emp_id
     FROM employees
     WHERE emp_name = 'JONAS');

OR

SELECT *
FROM employees
WHERE manager_id =
    (SELECT emp_id
     FROM employees
     WHERE emp_name = 'JONAS');

Sample Output:

 emp_id | emp_name | job_name | manager_id | hire_date  | salary  | commission | dep_id
--------+----------+----------+------------+------------+---------+------------+--------
  67858 | SCARLET  | ANALYST  |      65646 | 1997-04-19 | 3100.00 |            |   2001
  69062 | FRANK    | ANALYST  |      65646 | 1991-12-03 | 3100.00 |            |   2001
(2 rows)

Explanation:

The said query in SQL that retrieves information about employees who report to a manager named 'JONAS' from the 'employees' table.

This "emp_id" value is then used to filter the result of

An outer query includes rows where the "manager_id" column matches an "emp_id" value obtained from a subquery.

The subquery retrieves the "emp_id" of the employee with the name 'JONAS' from the 'employees' table.

Practice Online

Structure of employee Database:

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