SQLite Subquery - Exercises, Practice, Solution

SQLite Subquery [18 exercises with solution]

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1. Write a query to find the names (first_name, last_name) and salaries of the employees who have a higher salary than the employee whose last_name='Bull'.

Sample table : employees

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2. Write a query to find the names (first_name, last_name) of all employees who works in the IT department.

Sample table : employees

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3. Write a query to find the names (first_name, last_name) of the employees who have a manager who works for a department based in the United States.

Hint : Write single-row and multiple-row subqueries

Sample table : employees

Sample table : departments

Sample table : locations

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4. Write a query to find the names (first_name, last_name) of the employees who are managers.

Sample table : employees

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5. Write a query to find the names (first_name, last_name), the salary of the employees whose salary is greater than the average salary.

Sample table : employees

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6. Write a query to find the names (first_name, last_name), the salary of the employees whose salary is equal to the minimum salary for their job grade.

Sample table : employees

Sample table: jobs

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7. Write a query to find the names (first_name, last_name), the salary of the employees who earn more than the average salary and who works in any of the IT departments.

Sample table : employees

Sample table : departments

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8. Write a query to find the names (first_name, last_name), the salary of the employees who earn more than Mr. Bell.

Sample table : employees

Sample table : departments

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9. Write a query to find the names (first_name, last_name), the salary of the employees who earn the same salary as the minimum salary for all departments.

Sample table : employees

Sample table : departments

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10. Write a query to find the names (first_name, last_name) of the employees who are not supervisors.

Sample table : employees

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11. Write a query to display the employee ID, first name, last names, salary of all employees whose salary is above average for their departments.

Sample table : employees

Sample table : departments

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12. Write a query to find the 5th maximum salary in the employees table.

Sample table : employees

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13. Write a query to find the 4th minimum salary in the employees table.

Sample table : employees

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14. Write a query to select last 10 records from a table.

Sample table : employees

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15. Write a query to list department number, name for all the departments in which there are no employees in the department.

Sample table : employees

Sample table : departments

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16. Write a query to get 3 maximum salaries.

Sample table : employees

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17. Write a query to get 3 minimum salaries.

Sample table : employees

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18. Write a query to get nth max salaries of employees.

Sample table : employees

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...More

The structure of 'hr' database :

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