ΕΡARTMΕNT dept name building budget Biology Comn. Sci Watson 90000 Taylor 100000
ΕΡARTMΕNT dept name building budget Biology Comn. Sci Watson 90000 Taylor 100000
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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![Question 3 (foo3 s)
Consider the following states of DEPARTMENT and COURSE relations.
DEPARTΤΜΕΝT
dept name
building
budget
Biology
Comp. Sci.
Elec. Eng.
Finance
Watson
90000
Taylor
Taylor
Painter
100000
85000
120000
History
Music
Painter
50000
80000
Packard
Watson
Physics
70000
COURSE
dept_name
Biology
Biology
Biology
Comp. Sci.
Comp. Sci.
Comp. Sci.
Comp. Sci.
Database System Concepts Comp. Sci.
Elec. Eng.
Finance
course id
title
credits
BIO-101
BIO-301
BIO-399
Intro. to Biology
Genetics
4
4
Computational Biology
Intro. to Computer Science
Game Design
Robotics
CS-101
4
CS-190
CS-315
CS-319
4
Image Processing
3
CS-347
EE-181
FIN-201
HIS-351
Intro. to Digital Systems
Investment Banking
World History
History
Music
3
MU-199
Music Video Production
Physical Principles
Physics
PHY-101
4
Print the results (as a relation [with attribute names]) of the following relational algebra queries.
(a) Tcourse_id, title, credits (Odept_name = 'Biology (COURSE) )
(b)
dept_name SUM credits ( Tcourse_id, dept_name, credits(COURSE) )
( dept_name, course_id, building (COURSE*DEPARTMENT)
(d) T credits(COURSE) I Tbuilding (DEPARTMENT)
COURSE % T credits
(е) F.
SUM budget((T dept_name>credits
COURSE)*DEPARTMENT)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fe577bbe9-e026-4df5-a5be-1f3cbadf2f76%2F884acdfd-5ff3-4024-9fe2-66a4bf45ad8e%2Fy7nvnm6_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 3 (foo3 s)
Consider the following states of DEPARTMENT and COURSE relations.
DEPARTΤΜΕΝT
dept name
building
budget
Biology
Comp. Sci.
Elec. Eng.
Finance
Watson
90000
Taylor
Taylor
Painter
100000
85000
120000
History
Music
Painter
50000
80000
Packard
Watson
Physics
70000
COURSE
dept_name
Biology
Biology
Biology
Comp. Sci.
Comp. Sci.
Comp. Sci.
Comp. Sci.
Database System Concepts Comp. Sci.
Elec. Eng.
Finance
course id
title
credits
BIO-101
BIO-301
BIO-399
Intro. to Biology
Genetics
4
4
Computational Biology
Intro. to Computer Science
Game Design
Robotics
CS-101
4
CS-190
CS-315
CS-319
4
Image Processing
3
CS-347
EE-181
FIN-201
HIS-351
Intro. to Digital Systems
Investment Banking
World History
History
Music
3
MU-199
Music Video Production
Physical Principles
Physics
PHY-101
4
Print the results (as a relation [with attribute names]) of the following relational algebra queries.
(a) Tcourse_id, title, credits (Odept_name = 'Biology (COURSE) )
(b)
dept_name SUM credits ( Tcourse_id, dept_name, credits(COURSE) )
( dept_name, course_id, building (COURSE*DEPARTMENT)
(d) T credits(COURSE) I Tbuilding (DEPARTMENT)
COURSE % T credits
(е) F.
SUM budget((T dept_name>credits
COURSE)*DEPARTMENT)
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