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Write the following queries in SQL on the relational database schema for COMPANY database given in page 4.   Find the average salary of employees who works on the projects which are controlled by department 5.

Write the following queries in SQL on the relational database schema for COMPANY database given in page 4.   Find the average salary of employees who works on the projects which are controlled by department 5.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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 Write the following queries in SQL on the relational database schema for COMPANY database given in page 4.

 

  1. Find the average salary of employees who works on the projects which are controlled by department 5.
  2. Find the total number of dependents of each employee who has dependents.
  3. Find the total working hours of each manager.
  4. Find the name of employees who have salary less than the average salary of employees who are in department 4.
  5. Find the last name of the projects on which no manager works.
  6. Find the last name of the supervisors who do not have dependents.

 

 

 

EMPLOYEE Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn Dno DEPARTMENT Dname Dnumber Mgr ssn Mgr_start_date DEPT_LOCATIONS Dnumber Dlocation PROJECT Pname Pnumber Plocation Dnum WORKS_ON Essn Pno Hours DEPENDENT Essn Referential integrity constraints displayed on the COMPANY relational database Dependent_name Sex Bdate Relationship schema. One possible database state for the COMPANY relational database schema. EMPLOYEE Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn 30000 333445555 40000 888665555 Dno John B Smith 123456789 1965-01-09 731 Fondren, Houston, TX M Franklin Wong 333445555 1955-12-08 638 Voss, Houston, TX M 5 Alicia Zelaya 999887777 1968-01-19 3321 Castle, Spring, TX F 25000 987654321 4 Jennifer Wallace 987654321 1941-06-20 291 Berry, Bellaire, TX F 43000 888665555 4 Ramesh K Narayan 666884444 1962-09-15 | 975 Fire Oak, Humble, TX M 38000 333445555 Joyce A English 453453453 1972-07-31 5631 Rice, Houston, TX F 25000 333445555 5 Ahmad V Jabbar 987987987 1969-03-29 980 Dallas, Houston, TX M 25000 987654321 4 James E Borg 888665555 1937-11-10 450 Stone, Houston, TX M 55000 NULL 1 DEPARTMENT DEPT_LOCATIONS Dname Dnumber Mgr ssn Mgr start_date Dnumber Dlocation Research 5 333445555 1988-05-22 1 Houston Administration 4 987654321 1995-01-01 4 Stafford Headquarters 1 888665555 1981-06-19 Bellaire Sugarland 5 Houston WORKS_ON PROJECT Essn Pno Hours Pname Pnumber Plocation Dnum 123456789 1 32.5 ProductX 1 Bellaire 5 123456789 2 7.5 ProductY Sugarland 5 666884444 40.0 ProductZ 3 Houston 453453453 1 20.0 Computerization 10 Stafford 4 453453453 20.0 Reorganization 20 Houston 1 333445555 10.0 Newbenefits 30 Stafford 4 333445555 10.0 333445555 10 10.0 DEPENDENT 333445555 20 10.0 Essn Dependent_name Sex Bdate Relationship 999887777 30 30.0 333445555 Alice F 1986-04-05 Daughter 999887777 10 10.0 333445555 Theodore M 1983-10-25 Son 987987987 10 35.0 333445555 Joy F 1958-05-03 Spouse 987987987 30 5.0 987654321 Abner M 1942-02-28 Spouse 987654321 30 20.0 123456789 Michael M 1988-01-04 Son 987654321 20 15.0 123456789 Alice 1988-12-30 Daughter 888665555 20 NULL 123456789 Elizabeth 1967-05-05 Spouse 55
Transcribed Image Text:EMPLOYEE Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn Dno DEPARTMENT Dname Dnumber Mgr ssn Mgr_start_date DEPT_LOCATIONS Dnumber Dlocation PROJECT Pname Pnumber Plocation Dnum WORKS_ON Essn Pno Hours DEPENDENT Essn Referential integrity constraints displayed on the COMPANY relational database Dependent_name Sex Bdate Relationship schema. One possible database state for the COMPANY relational database schema. EMPLOYEE Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn 30000 333445555 40000 888665555 Dno John B Smith 123456789 1965-01-09 731 Fondren, Houston, TX M Franklin Wong 333445555 1955-12-08 638 Voss, Houston, TX M 5 Alicia Zelaya 999887777 1968-01-19 3321 Castle, Spring, TX F 25000 987654321 4 Jennifer Wallace 987654321 1941-06-20 291 Berry, Bellaire, TX F 43000 888665555 4 Ramesh K Narayan 666884444 1962-09-15 | 975 Fire Oak, Humble, TX M 38000 333445555 Joyce A English 453453453 1972-07-31 5631 Rice, Houston, TX F 25000 333445555 5 Ahmad V Jabbar 987987987 1969-03-29 980 Dallas, Houston, TX M 25000 987654321 4 James E Borg 888665555 1937-11-10 450 Stone, Houston, TX M 55000 NULL 1 DEPARTMENT DEPT_LOCATIONS Dname Dnumber Mgr ssn Mgr start_date Dnumber Dlocation Research 5 333445555 1988-05-22 1 Houston Administration 4 987654321 1995-01-01 4 Stafford Headquarters 1 888665555 1981-06-19 Bellaire Sugarland 5 Houston WORKS_ON PROJECT Essn Pno Hours Pname Pnumber Plocation Dnum 123456789 1 32.5 ProductX 1 Bellaire 5 123456789 2 7.5 ProductY Sugarland 5 666884444 40.0 ProductZ 3 Houston 453453453 1 20.0 Computerization 10 Stafford 4 453453453 20.0 Reorganization 20 Houston 1 333445555 10.0 Newbenefits 30 Stafford 4 333445555 10.0 333445555 10 10.0 DEPENDENT 333445555 20 10.0 Essn Dependent_name Sex Bdate Relationship 999887777 30 30.0 333445555 Alice F 1986-04-05 Daughter 999887777 10 10.0 333445555 Theodore M 1983-10-25 Son 987987987 10 35.0 333445555 Joy F 1958-05-03 Spouse 987987987 30 5.0 987654321 Abner M 1942-02-28 Spouse 987654321 30 20.0 123456789 Michael M 1988-01-04 Son 987654321 20 15.0 123456789 Alice 1988-12-30 Daughter 888665555 20 NULL 123456789 Elizabeth 1967-05-05 Spouse 55
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