SQL-QUERY, There is a department table with department name ,department ID and with staff members ID who are working in department and also there is a Staff members table with staff member name, staff member ID and department ID he works , so basically there is a many to many relationship between them so you need to write a two SQL queries in which first query is you need to retrieve all the departments a staff member works and second query is you need to retrieve all the staff members works for each department