IF EXISTS (SELECT name from sys.databases where name='Employees')DROP DATABASE EmployeesGOCREATE DATABASE EmployeesGOUSE EmployeesGO--- create department tableIF EXISTS (SELECT name from sys.tables where name='departments')DROP DATABASE departmentsCREATE TABLE departments(dept_no char(4) not null,dept_name varchar(40) not null,constraint pkdepartments primary key(dept_no))--- create employee tableIF EXISTS (SELECT name from sys.tables where name='employee')DROP DATABASE employeeCREATE TABLE employee(emp_no int not null,birth_date datetime not null,first_name varchar(14) not null,last_name varchar(16) not null,gender char(1),hire_date datetime not null,constraint pkEmployee primary key(emp_no),constraint ckgender CHECK (gender in('M','F')))--- create dept_emp table IF EXISTS (SELECT name from sys.tables where name='dept_emp')DROP DATABASE dept_empCREATE TABLE dept_emp(emp_no int not null,dept_no char(4) not null,from_date datetime not null,to_date datetime not null,constraint pkdept_emp primary key(emp_no),constraint fkdept_emp foreign key(emp_no) references employee(emp_no),constraint fkdept_departments foreign key(dept_no) references departments(dept_no))--- create table salariesIF EXISTS (SELECT name from sys.tables where name='salaries')DROP DATABASE salariesCREATE TABLE salaries(emp_no int not null,salary int not null,from_date datetime not null,to_date datetime not null,constraint pksalaries primary key(form_date),constraint fksalariesemployee foreign key(emp_no) references employee(emp_no))--- create dept_manager table IF EXISTS (SELECT name from sys.tables where name='dept_manager')DROP DATABASE dept_managerCREATE TABLE dept_manager(dept_no char(4) not null,emp_no int not null,from_date datetime not null,to_date datetime not null,constraint pkdept_manager primary key(dept_no),constraint fkdept_manager foreign key(emp_no) references employee(emp_no),constraint fkdept_managerdepartments foreign key(dept_no) references departments(dept_no))--- create titles table IF EXISTS (SELECT name from sys.tables where name='titles')DROP DATABASE titlesCREATE TABLE titles(emp_no int not null,title varchar(50) not null,from_date datetime not null,to_date datetime not null,constraint pktitles primary key (title, form_date),constraint fktitleemployee foreign key (emp_no) references employee(emp_no))--- insert values to departmentGODELETE FROM departments insert departmentsvalues('111','Computer')insert departmentsvalues('12','Electronics')insert departmentsvalues('13','Electrical')insert departmentsvalues('14','Mechanical')insert departmentsvalues('15','Indusrial')GOSELECT * FROM departments--- insert values employeeGODELETE FROM employeeinsert employeevalues('1','1995-01-09','Patricia Gayle','Marte','F','2014-08-25')insert employeevalues('2','1991-07-19','Leeroy','Castelo','M','2012-09-15')insert employeevalues('3','1994-09-22','Raffy','David','M','2011-04-21')insert employeevalues('4','1995-05-17','Iris','Antonio','F','2014-09-17')insert employeevalues('5','1993-05-12','Kelly','Mendez','F','2014-05-02')insert employeevalues('6','1994-06-14','Mara','Olivar','F','2014-08-10')insert employeevalues('7','1995-05-22','Sherlock','Holmes','M','2014-04-02')insert employeevalues('8','1993-02-12','John','Watson','M','2014-09-01')insert employeevalues('9','1998-07-20','Jevitico','Banzon','M','2014-09-04')insert employeevalues('10','1991-07-14','Matthew','Gomez','M','2014-04-04')insert employeevalues('11','1997-04-06','Ted','Mosby','M','2014-10-08')insert employeevalues('12','1996-10-11','Joanna','Mejia','F','2014-02-21')insert employeevalues('13','1994-08-22','Aaron','Tunguia','M','2014-05-03')insert employeevalues('14','1995-04-13','Hannah','Mucho','F','2014-04-03')insert employeevalues('15','1995-03-14','Christian','Victor','M','2014-04-07')insert employeevalues('16','1994-11-26','Earl','Tolentino','M','2014-05-07')insert employeevalues('17','1997-03-26','Robin','Cinco','F','2014-09-21')insert employeevalues('18','1994-07-23','Cheska','Munoz','F','2014-06-22')insert employeevalues('19','1995-08-22','Nicolle','Mangaba','F','2014-07-26')insert employeevalues('20','1995-01-29','Johann','Leonzon','M','2014-01-29')GOSELECT * FROM employee--- insert values titlesGODELETE FROM titlesinsert titlesvalues('1','Software Engineer','2014-04-14','2007-01-29')insert titlesvalues('2','Electonics Engineer','2014-03-09','2004-03-24')insert titlesvalues('3','Electrical Engineer','2014-08-25','2013-08-12')insert titlesvalues('4','Mechanical Engineer','2012-03-14','2008-07-03')insert titlesvalues('5','Industrial Engineer','2014-01-15','2011-02-07')GOSELECT * FROM titles--- insert values in dept_managerGODELETE FROM dept_managerinsert dept_managervalues('11','1','2012-03-11','2014-12-12')insert dept_managervalues('12','2','2012-09-27','2014-09-07')insert dept_managervalues('13','3','2012-07-05','2014-05-12')insert dept_managervalues('14','4','2012-05-07','2014-09-08')insert dept_managervalues('15','5','2012-12-12','2014-11-13')GOSELECT * FROM dept_manager--- insert values in salary tableGODELETE FROM salariesinsert salariesvalues ('1','50000','2014-01-01','2014-02-01')insert salariesvalues ('2','60000','2014-05-01','2014-06-01')insert salariesvalues ('3','70000','2014-04-01','2014-05-30')insert salariesvalues ('4','30000','2014-06-01','2014-07-30')insert salariesvalues ('5','60000','2014-08-01','2014-09-30')GOSELECT * FROM salaries --- total number of employee per departmentselect d.dept_name as 'department', count(de.emp_no) as 'Total number of employees'from departments d, dept_emp dewhere d.dept_no=de.dept_nogroup by dept_name --- total number of employee per manager select dm.emp_no as 'Manager', count(e.emp.no) as 'Total number of employees' from dept_manager dm, employee e where dm.emp_no = e.emp_no ---- employee number, name, birthdate, gender, hire_date, salary, title, department, manager select e.emp_no, e.firsrt_name, e.last_name, e.birthdate, e.gender, e.hire_date s.salary, t.title, d.dept_name, dm.emp_no from employee e, title t, salaries s, dept_manager dm, departments d where e.emp_no = t.emp_no and e.emp_no = dm.emp_no = dm.dept_name