Specify the following queries on the COMPANY relational database schema

(d) For each project, list the names of projects the have total spent hours (spent by all employees) less than the average spent hours of all projects.

(f) 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.

(g) List the last names of department managers who have no dependents.

EMPLOYEE Fname Minit Lname Ssn Bdate Address SexSalary Super_ssn Dno DEPARTMENT Dname Dnumber Mgr ssn Mgr _start_date DEPT LOCATIONS Dnumber Dlocation PROJECT PnamePnumber Plocation Dnum WORKS ON Essn Pno Hours DEPENDENT Essn Dependent_name Sex Bdate Relationship EMPLOYEE Fname Minit Lname Ssn Bdate Address SexSalary Super_ssn Dno DEPARTMENT Dname Dnumber Mgr ssn Mgr _start_date DEPT LOCATIONS Dnumber Dlocation PROJECT PnamePnumber Plocation Dnum WORKS ON Essn Pno Hours DEPENDENT Essn Dependent_name Sex Bdate Relationship