Tham khảo tài liệu 'giáo trình sql bài 16', công nghệ thông tin, cơ sở dữ liệu phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | W07 FD Lab03 Query 1 Lab 03 Company Database Queries Specify the queries of Exercise a. Retrieve the names of employees in department 5 who work more than 10 hours per week on the ProductX project. b. List the names of employees who have a dependent with the same first name as themselves. c. Find the names of employees that are directly supervised by Franklin Wong . d. For each project list the project name and the total hours per week by all employees spent on that project. e. Retrieve the names of employees who work on every project. f. Retrieve the names of employees who do not work on any project. g. For each department retrieve the department name and the average salary of employees working in that department. h. Retrieve the average salary of all female employees. i. Find the names and addresses of employees who work on at least one project located in Houston but whose department has no location in Houston. j. List the last names of department managers who have no dependents. Note Save to file .
