SQL Exercise: List ID, name, salary, and job_name of the employees

SQL employee Database: Exercise-39 with Solution

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39. From the following table, write a query in SQL to find those employees where -
1. the employees receive some commission which should not be more than the salary and annual salary including commission is below 34000.
2. Designation is ‘SALESMAN’ and working in the department ‘3001’. Return employee ID, employee name, salary and job name.

Sample table: employees

Pictorial Presentation:

Sample Solution:

SELECT emp_id,
       emp_name,
       salary,
       job_name
FROM employees
WHERE 12*(salary+commission) < 34000
  AND commission IS NOT NULL
  AND commission < salary
  AND job_name = 'SALESMAN'
  AND dep_id = 3001;

Sample Output:

 emp_id | emp_name | salary  | job_name
--------+----------+---------+----------
  64989 | ADELYN   | 1700.00 | SALESMAN
  65271 | WADE     | 1350.00 | SALESMAN
  68454 | TUCKER   | 1600.00 | SALESMAN
(3 rows)

Explanation:

The said query in SQL that retrieves "emp_id", "emp_name", "salary", and "job_name" from the 'employees' table for salesmen in department 3001 whose annual income (including commission) is less than 34000.

WHERE clause includes rows in which the calculated annual income (salary + commission) multiplied by 12 must not exceed 34000; the "commission" column must not be null and must not be equal to the "salary" column, the "job_name" column must be 'SALESMAN', and the "dep_id" column must be 3001.

Relational Algebra Expression:

Relational Algebra Tree:

Practice Online

Sample Database: employee

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