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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 Expression: Restricting and Sorting Data: Display the name and salary for all employees whose salary is not in the specified range.

Relational Algebra Tree:

Relational Algebra Tree: Basic SELECT statement: Restricting and Sorting Data: Display the name and salary for all employees whose salary is not in the specified range.

Pictorial Presentation of the above query

Pictorial: Query to display the names and salary for all employees whose salary is not in the specified range

 

MySQL Code Editor:

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Next:Write a query to display the name (first_name, last_name) and hire date for all employees who were hired in 1987.

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