PostgreSQL Restricting and Sorting Data: Display the information for all employees whose salary is not in a specific range and working in two specific departments

3. Write a query to display the name, including first_name and last_name, and salary who works in the department either 30 or 100 and salary is out of the range between $10,000 and $15,000.

Sample Solution:

Code:

SELECT first_name, last_name, salary, department_id 
FROM employees 
WHERE salary NOT BETWEEN 10000 AND 15000 
AND department_id IN (30, 100);

Sample table: employees

Output:

pg_exercises=# SELECT first_name, last_name, salary, department_id
pg_exercises-# FROM employees
pg_exercises-# WHERE salary NOT BETWEEN 10000 AND 15000
pg_exercises-# AND department_id IN (30, 100);
 first_name  | last_name  | salary  | department_id
-------------+------------+---------+---------------
 Daniel      | Faviet     | 9000.00 |           100
 John        | Chen       | 8200.00 |           100
 Ismael      | Sciarra    | 7700.00 |           100
 Jose Manuel | Urman      | 7800.00 |           100
 Luis        | Popp       | 6900.00 |           100
 Alexander   | Khoo       | 3100.00 |            30
 Shelli      | Baida      | 2900.00 |            30
 Sigal       | Tobias     | 2800.00 |            30
 Guy         | Himuro     | 2600.00 |            30
 Karen       | Colmenares | 2500.00 |            30
(10 rows)

Relational Algebra Expression:

Relational Algebra Tree:

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Previous: Write a query to display the name, including first_name and last_name, and department ID who works in the department 30 or 100 and arrange the result in ascending order according to the department ID.
Next: Write a query to display the name, including first_name and last_name and hire date for all employees who were hired in 1987.