w3resource

SQL Exercise: List id, name, department id, location of all employees

SQL employee Database: Exercise-93 with Solution

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

93. From the following table, write a SQL query to list the employee id, name, department id, location of all the employees.

Sample table: employees


Sample table: department


Sample Solution:

SELECT e.emp_id,
       e.emp_name,
       e.dep_id,
       d.dep_location
FROM employees e,
     department d
WHERE e.dep_id = d.dep_id ;

Sample Output:

 emp_id | emp_name | dep_id | dep_location
--------+----------+--------+--------------
  68319 | KAYLING  |   1001 | SYDNEY
  66928 | BLAZE    |   3001 | PERTH
  67832 | CLARE    |   1001 | SYDNEY
  65646 | JONAS    |   2001 | MELBOURNE
  67858 | SCARLET  |   2001 | MELBOURNE
  69062 | FRANK    |   2001 | MELBOURNE
  63679 | SANDRINE |   2001 | MELBOURNE
  64989 | ADELYN   |   3001 | PERTH
  65271 | WADE     |   3001 | PERTH
  66564 | MADDEN   |   3001 | PERTH
  68454 | TUCKER   |   3001 | PERTH
  68736 | ADNRES   |   2001 | MELBOURNE
  69000 | JULIUS   |   3001 | PERTH
  69324 | MARKER   |   1001 | SYDNEY
(14 rows)

Explanation:

The said query in SQL that selects the emp_id, emp_name, dep_id from the employees table and the dep_location from the department table. The query joins the two tables on the dep_id column where they have the same values.

Relational Algebra Expression:

Relational Algebra Expression: List the employee id, name, department id, location of all the employees.

Relational Algebra Tree:

Relational Algebra Tree: List the employee id, name, department id, location of all the employees.

Practice Online


Sample Database: employee

employee database structure

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

Previous SQL Exercise: Compute the total salary for each job in 1991.
Next SQL Exercise: List employee id of all the departments 1001 and 2001.

What is the difficulty level of this exercise?

Test your Programming skills with w3resource's quiz.



Become a Patron!

Follow us on Facebook and Twitter for latest update.

It will be nice if you may share this link in any developer community or anywhere else, from where other developers may find this content. Thanks.

https://www.w3resource.com/sql-exercises/employee-database-exercise/sql-employee-database-exercise-93.php