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