﻿ SQL: List all the employees whose designation is CLERK

# SQL Exercise: List all the employees whose designation is CLERK

## SQL employee Database: Exercise-20 with Solution

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20. From the following table, write a SQL query to find those employees whose designation is ‘CLERK’. Return complete information about the employees.

Sample table: employees

Pictorial Presentation:

Sample Solution:

``````SELECT *
FROM employees
WHERE job_name = 'CLERK';
``````

Sample Output:

``` emp_id | emp_name | job_name | manager_id | hire_date  | salary  | commission | dep_id
--------+----------+----------+------------+------------+---------+------------+--------
63679 | SANDRINE | CLERK    |      69062 | 1990-12-18 |  900.00 |            |   2001
68736 | ADNRES   | CLERK    |      67858 | 1997-05-23 | 1200.00 |            |   2001
69000 | JULIUS   | CLERK    |      66928 | 1991-12-03 | 1050.00 |            |   3001
69324 | MARKER   | CLERK    |      67832 | 1992-01-23 | 1400.00 |            |   1001
(4 rows)
```

Explanation:

The provided query in SQL that retrieves all the rows from the 'employees' table where the "job_name" column has a value of 'CLERK'.

The result will include all columns of the selected rows.

Relational Algebra Expression:

Relational Algebra Tree:

## Practice Online

Sample Database: employee

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