Specify the following queries on the database in Figure 5.6 in SQL. (a) Retrieve the names of employee in department 4 who work more than 15 hours per week o the 'Newbenefits' project. (b) Find the names of Franklin Wong's supervisor. (c) For each project, list the project name and the total hours per week (by all employees) spent c that project.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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DATABSE 

Figure 5.6
One possible database state for the COMPANY relational database schema.
EMPLOYEE
Fname
Minit
Lname
Ssn
Bdate
Address
Sex Salary
Super_ssn
Dno
John
Smith
123456789
1965-01-09 731 Fondren, Houston, TX M
30000 333445555
Franklin
Wong
333445555 1955-12-08 638 Voss, Houston, TX
M
40000 888665555
Alicia
Zelaya
999887777 1968-01-19 3321 Castle, Spring, TX
F
25000 987654321
4
Jennifer
S
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
5
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
DEPARTMENT
DEPT_LOCATIONS
Dname
Dnumber
Mgr_ssn
Mgr_start_date
Dnumber
Dlocation
Research
333445555
1988-05-22
1
Houston
Administration
4
987654321
1995-01-01
4
Stafford
Headquarters
1
888665555
1981-06-19
Bellaire
Sugarland
Houston
WORKS_ON
PROJECT
Essn
Pno
Hours
Pname
Pnumber
Plocation
Dnum
123456789
1
32.5
ProductX
1
Bellaire
123456789
2
7.5
ProductY
2
Sugarland
666884444
3
40.0
ProductZ
3
Houston
453453453
1
20.0
Computerization
10
Stafford
4
453453453
2
20.0
Reorganization
20
Houston
1
333445555
10.0
Newbenefits
30
Stafford
333445555
3
10.0
333445555
10
10.0
DEPENDENT
333445555
20
10.0
Essn
Dependent_name
Sex
Bdate
Relationship
999887777
30
30.0
333445555
Alice
1986-04-05
Daughter
999887777
10
10.0
333445555
Theodore
1983-10-25
Son
987987987
10
35.0
333445555
Joy
F
1958-05-03
Spouse
987987987
30
5.0
987654321
Abner
1942-02-28
Spouse
987654321
30
20.0
123456789
Michael
M
1988-01-04
Son
987654321
20
15.0
123456789
Alice
F
1988-12-30
Daughter
888665555
20
NULL
123456789
Elizabeth
F
1967-05-05
Spouse
Transcribed Image Text:Figure 5.6 One possible database state for the COMPANY relational database schema. EMPLOYEE Fname Minit Lname Ssn Bdate Address Sex Salary Super_ssn Dno John Smith 123456789 1965-01-09 731 Fondren, Houston, TX M 30000 333445555 Franklin Wong 333445555 1955-12-08 638 Voss, Houston, TX M 40000 888665555 Alicia Zelaya 999887777 1968-01-19 3321 Castle, Spring, TX F 25000 987654321 4 Jennifer S 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 5 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 DEPARTMENT DEPT_LOCATIONS Dname Dnumber Mgr_ssn Mgr_start_date Dnumber Dlocation Research 333445555 1988-05-22 1 Houston Administration 4 987654321 1995-01-01 4 Stafford Headquarters 1 888665555 1981-06-19 Bellaire Sugarland Houston WORKS_ON PROJECT Essn Pno Hours Pname Pnumber Plocation Dnum 123456789 1 32.5 ProductX 1 Bellaire 123456789 2 7.5 ProductY 2 Sugarland 666884444 3 40.0 ProductZ 3 Houston 453453453 1 20.0 Computerization 10 Stafford 4 453453453 2 20.0 Reorganization 20 Houston 1 333445555 10.0 Newbenefits 30 Stafford 333445555 3 10.0 333445555 10 10.0 DEPENDENT 333445555 20 10.0 Essn Dependent_name Sex Bdate Relationship 999887777 30 30.0 333445555 Alice 1986-04-05 Daughter 999887777 10 10.0 333445555 Theodore 1983-10-25 Son 987987987 10 35.0 333445555 Joy F 1958-05-03 Spouse 987987987 30 5.0 987654321 Abner 1942-02-28 Spouse 987654321 30 20.0 123456789 Michael M 1988-01-04 Son 987654321 20 15.0 123456789 Alice F 1988-12-30 Daughter 888665555 20 NULL 123456789 Elizabeth F 1967-05-05 Spouse
Specify the following queries on the database in Figure 5.6 in SQL.
(a) Retrieve the names of employee in department 4 who work more than 15 hours per week on
the 'Newbenefits' project.
(b) Find the names of Franklin Wong's supervisor.
(c) For each project, list the project name and the total hours per week (by all employees) spent on
that project.
(d) Retrieve the names of all employees who work in the department that has the employee with
the highest salary among all employees.
(e) Retrieve the names of all employees whose supervisor's supervisor has '888665555’ for SSN.
Transcribed Image Text:Specify the following queries on the database in Figure 5.6 in SQL. (a) Retrieve the names of employee in department 4 who work more than 15 hours per week on the 'Newbenefits' project. (b) Find the names of Franklin Wong's supervisor. (c) For each project, list the project name and the total hours per week (by all employees) spent on that project. (d) Retrieve the names of all employees who work in the department that has the employee with the highest salary among all employees. (e) Retrieve the names of all employees whose supervisor's supervisor has '888665555’ for SSN.
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