Consider the relations Courses1.Courses Enrollment and Students. Location b) Courses1-Courses2 (1) Give the results of the following relational algebra expressions: a) Tid (e-History OR Computing (Courses2)) c) Courses In Courses2 Farst d) Courses Enrollment THE BE THE LAS HOA e) Enrollment/(Courses1) (2) Write the following query in Belational Algebra. a) Find the sids of students who bave enrolled in course. Calculus. b) Find the names of students who have enrolled in course Calculus. c) Find the names of students who have enrolled at least one course. d) Find the names of students who have enrolled in Calculus or Algebra. e) Find the sids of students who have enrolled in all courses (both Coursesland Courses2).

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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Consider the relations Courses1. Courses2.
Enrollment and Students.
Corust
AS Int
Larvinn
Kary 144
b) Courses1-Courses2
(1) Give the results of the following relational
algebra expressions:
a) Tid (History OR Computing (Courses2))
c) Courses Courses2
Faralment
WH
HEAT
HO AS
HOBI
HC AL
A
d) Courses Enrollment
e)
Enrollment/(Courses1)
(2) Write the following query in Relational Algebra.
a) Eind the sids of students who bave enrolled.in
course Calculus
b) Find the names of students who have enrolled in
course Calculus
c) Find the names of students who have enrolled at
least one course.
d) Find the names of students who have enrolled in
Calculus or Algebra.
e) Find the sids of students who have enrolled in all
courses (both Courses1 and Courses2).
Transcribed Image Text:Consider the relations Courses1. Courses2. Enrollment and Students. Corust AS Int Larvinn Kary 144 b) Courses1-Courses2 (1) Give the results of the following relational algebra expressions: a) Tid (History OR Computing (Courses2)) c) Courses Courses2 Faralment WH HEAT HO AS HOBI HC AL A d) Courses Enrollment e) Enrollment/(Courses1) (2) Write the following query in Relational Algebra. a) Eind the sids of students who bave enrolled.in course Calculus b) Find the names of students who have enrolled in course Calculus c) Find the names of students who have enrolled at least one course. d) Find the names of students who have enrolled in Calculus or Algebra. e) Find the sids of students who have enrolled in all courses (both Courses1 and Courses2).
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