Consider the relations Courses1. Courses2.Enrollment and Students.CorustAS ILarvinnKary 114b) Courses1-Courses2Chestion(1) Give the results of the following relationalalgebra expressions:a) (History ORComp (Courses2))c) Courses Courses2d) Courses EnrollmentFaralmentWHHEATHC ASHOBEHC ALTUAe)Enrollment/(Courses!)(2) Write the following query in Relational Algebra.a) Eind the sids of students who bave enrolled.incourse Calculusb) Find the names of students who have enrolled incourse Calculusc) Find the names of students who have enrolled atleast one course,d) Find the names of students who have enrolled inCalculus or Algebra.e) Find the sids of students who have enrolled in allcourses (both Courses1 and Courses2).

step 1 As per the answering guidelines solving the first 3 sub question completely. 1) Here…

Consider the relations Courses1. Courses2. Enrollment and Students B Hary L (1) Give the results of the following relational algebra expressions: a) Tit (- Hay O Computing (Courses2)) b) Coursesl-Courses2 AB HC Ties THE HE AL c) Courses Courses2 d) Courses Enrollment

Consider the relations Courses1. Courses2. Enrollment and Students B Hary L (1) Give the results of the following relational algebra expressions: a) Tit (- Hay O Computing (Courses2)) b) Coursesl-Courses2 AB HC Ties THE HE AL c) Courses Courses2 d) Courses Enrollment

Database Systems: Design, Implementation, & Management

12th Edition

ISBN:9781305627482

Author:Carlos Coronel, Steven Morris

Publisher:Carlos Coronel, Steven Morris

Chapter8: Advanced Sql

Section: Chapter Questions

Problem 18RQ

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Write expressions of relational algebra to answer the following queries:
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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,,,,,,,
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