MySQL Exercise: Display the name and salary for all employees whose salary is not in the specified range
MySQL Restricting and Sorting Data: Exercise-3 with Solution
Write a query to display the name (first_name, last_name) and salary for all employees whose salary is not in the range $10,000 through $15,000 and are in department 30 or 100.
Sample table: employees
Code:
-- Selecting the first_name, last_name, salary, and department_id columns
SELECT first_name, last_name, salary, department_id
-- Selecting data from the employees table
FROM employees
-- Filtering the result set to include only rows where the salary is not between 10000 and 15000
-- and the department_id is either 30 or 100
WHERE salary NOT BETWEEN 10000 AND 15000
AND department_id IN (30, 100);
Explanation:
- This SQL query selects the first_name, last_name, salary, and department_id columns from the employees table.
- The WHERE clause filters the result set to include only those rows where:
- The salary column does not fall between the range of 10000 and 15000.
- The department_id column matches either 30 or 100.
- The NOT BETWEEN operator is used to specify the range of values to filter for the salary column.
- The IN operator is used to specify multiple values for filtering the department_id column.
- This query is useful when you want to exclude employees within a specific salary range and only include those who belong to certain departments.
Relational Algebra Expression:
Relational Algebra Tree:
Pictorial Presentation of the above query
MySQL Code Editor:
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