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MySQL exercises

MySQL JOINS - Exercises, Practice, Solution

MySQL Joins [13 exercises with solution]

1. Write a query to find the addresses (location_id, street_address, city, state_province, country_name) of all the departments. Go to the editor
Hint : Use NATURAL JOIN.

Sample table: locations


Sample table: countries


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2. Write a query to find the name (first_name, last name), department ID and name of all the employees. Go to the editor

Sample table: employees


Sample table: departments


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3. Write a query to find the name (first_name, last_name), job, department ID and name of the employees who works in London. Go to the editor

Sample table: departments


Sample table: locations


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4. Write a query to find the employee id, name (last_name) along with their manager_id and name (last_name). Go to the editor

Sample table: employees


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5. Write a query to find the name (first_name, last_name) and hire date of the employees who was hired after 'Jones'. Go to the editor

Sample table: employees


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6. Write a query to get the department name and number of employees in the department. Go to the editor

Sample table: employees


Sample table: departments


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7. Write a query to find the employee ID, job title, number of days between ending date and starting date for all jobs in department 90. Go to the editor

Sample table: employees


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8. Write a query to display the department ID and name and first name of manager. Go to the editor

Sample table: employees


Sample table: departments


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9. Write a query to display the department name, manager name, and city. Go to the editor

Sample table: employees


Sample table: departments


Sample table: locations


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10. Write a query to display the job title and average salary of employees. Go to the editor

Sample table: employees


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11. Write a query to display job title, employee name, and the difference between salary of the employee and minimum salary for the job. Go to the editor

Sample table: employees


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12. Write a query to display the job history that were done by any employee who is currently drawing more than 10000 of salary. Go to the editor

Sample table: employees


Sample table: Job_history


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13. Write a query to display department name, name (first_name, last_name), hire date, salary of the manager for all managers whose experience is more than 15 years. Go to the editor

Sample table: employees


Sample table: departments


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Structure of 'hr' database:

hr database

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