SQL Exercise: Search for all grade 4 and 5 as Analysts and Managers

SQL subqueries on employee Database: Exercise-6 with Solution

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6. From the following table, write a SQL query to find those employees of grade 4 or 5 and who work as ANALYST or MANAGER. Return complete information about the employees.

Sample table: employees

Sample table: salary_grade

Sample Solution:

SELECT *
FROM employees e,
     salary_grade s
WHERE e.salary BETWEEN s.min_sal AND s.max_sal
  AND s.grade IN (4,
                  5)
  AND e.emp_id IN
    (SELECT e.emp_id
     FROM employees e
     WHERE e.job_name IN ('MANAGER',
                          'ANALYST'));

Sample Output:

 emp_id | emp_name | job_name | manager_id | hire_date  | salary  | commission | dep_id | grade | min_sal | max_sal
--------+----------+----------+------------+------------+---------+------------+--------+-------+---------+---------
  66928 | BLAZE    | MANAGER  |      68319 | 1991-05-01 | 2750.00 |            |   3001 |     4 |    2101 |    3100
  67832 | CLARE    | MANAGER  |      68319 | 1991-06-09 | 2550.00 |            |   1001 |     4 |    2101 |    3100
  65646 | JONAS    | MANAGER  |      68319 | 1991-04-02 | 2957.00 |            |   2001 |     4 |    2101 |    3100
  67858 | SCARLET  | ANALYST  |      65646 | 1997-04-19 | 3100.00 |            |   2001 |     4 |    2101 |    3100
  69062 | FRANK    | ANALYST  |      65646 | 1991-12-03 | 3100.00 |            |   2001 |     4 |    2101 |    3100
(5 rows)

Explanation:

The said query in SQL that retrieves information for employees from the tables 'employees' and 'salary_grade' who are either managers or analysts and whose salaries fall within the ranges specified for salary grades 4 or 5.

The WHERE clause includes records in the result set that meets the following conditions:

The employee's salary must be between the minimum and maximum salary of a salary grade 4 or 5.

The employee's job name must be either "MANAGER" or "ANALYST".

The employee's ID must be included in a subquery that selects employee IDs from the 'employees' table based on the same job name condition.

Practice Online

Structure of employee Database:

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Previous SQL Exercise: List all the employees of grade 2 and 3.
Next SQL Exercise: List the employees whose salary is more than JONAS.