SQL Exercise: Display all the unique job in descending order

SQL employee Database: Exercise-68 with Solution

[An editor is available at the bottom of the page to write and execute the scripts.]

68. From the following table, write a SQL query to sort the unique jobs in descending order. Return job name.

Pictorial Presentation:

Sample table: employees

Sample Solution:

SELECT DISTINCT job_name
FROM employees
ORDER BY job_name DESC;

Sample Output:

 job_name
-----------
 SALESMAN
 PRESIDENT
 MANAGER
 CLERK
 ANALYST
(5 rows)

Explanation:

The given query in SQL that retrieves all unique values of the "job_name" column from the 'employees' table and order them in descending order.

The query returns all unique job names that exist in the 'employees' table, with each job name appearing only once in the result set. The job names will be ordered in descending order.

The "DISTINCT" keyword eliminates any duplicate values in the result set.

Relational Algebra Expression:

Relational Algebra Tree:

Practice Online

Sample Database: employee

Have another way to solve this solution? Contribute your code (and comments) through Disqus.

Previous SQL Exercise: Employees in ascending and descending order.
Next SQL Exercise: Employees in the ascending order on annual salary.