Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Videos > Question Bank for GATE Computer Science Engineering > Relational Algebra Division Operators - 2
Relational Algebra Division Operators - 2 Video Lecture | Question Bank for GATE Computer Science Engineering - Computer Science Engineering (CSE)
|
63 videos|7 docs|165 tests
|
FAQs on Relational Algebra Division Operators - 2 Video Lecture - Question Bank for GATE Computer Science Engineering - Computer Science Engineering (CSE)
| 1. What are the basic operators used in relational algebra? |  |
Ans. The basic operators used in relational algebra are:
- Selection (σ): selects rows that satisfy a given condition.
- Projection (π): selects specific columns from a relation.
- Union (∪): combines two relations and eliminates duplicate tuples.
- Difference (-): returns tuples that are in one relation but not in another.
- Cartesian Product (×): combines each tuple from one relation with each tuple from another relation.
| 2. What is the purpose of the division operator in relational algebra? | |
Ans. The division operator in relational algebra is used to find tuples that satisfy a specific condition involving two relations. It essentially allows us to divide one relation by another based on a given condition. The resulting relation will contain tuples that, when combined with the divisor relation, give the dividend relation.
| 3. How is the division operator represented in relational algebra? | |
Ans. The division operator in relational algebra is denoted by the symbol ÷ or /.
| 4. Can you provide an example of using the division operator in relational algebra? | |
Ans. Sure! Let's say we have two relations: Students and Courses. The Students relation has attributes (student_id, name), and the Courses relation has attributes (course_id, name). We want to find the students who have taken all the courses available. The division operator can be used as follows:
Students ÷ Courses
This will return the students who have taken all the courses listed in the Courses relation.
| 5. What happens if the divisor relation is empty in the division operator? | |
Ans. If the divisor relation is empty in the division operator, the result of the division will also be empty. This is because the division operation requires matching tuples in the divisor and dividend relations, and if there are no tuples in the divisor relation, there will be no matches and no resulting tuples in the division.
Related Exams
About this Video
|
4.98/5 Rating |
|
Nov 18, 2024 Last updated |
Video Description: Relational Algebra Division Operators - 2 for Computer Science Engineering (CSE) 2024 is part of Question Bank for GATE Computer Science Engineering preparation.
The notes and questions for Relational Algebra Division Operators - 2 have been prepared according to the Computer Science Engineering (CSE) exam syllabus.
Information about Relational Algebra Division Operators - 2 covers all important topics for Computer Science Engineering (CSE) 2024 Exam.
Find important definitions, questions, notes, meanings, examples, exercises and tests below for Relational Algebra Division Operators - 2.
Introduction of Relational Algebra Division Operators - 2 in English is available as part of our Question Bank for GATE Computer Science Engineering for Computer Science Engineering (CSE) & Relational Algebra Division Operators - 2 in
Hindi for Question Bank for GATE Computer Science Engineering course. Download more important topics related with notes, lectures and mock test series for
Computer Science Engineering (CSE) Exam by signing up for free.
Description
Video Lecture & Questions for Relational Algebra Division Operators - 2 Video Lecture | Question Bank for GATE Computer Science Engineering - Computer Science Engineering (CSE) - Computer Science Engineering (CSE) full syllabus preparation | Free video for Computer Science Engineering (CSE) exam to prepare for Question Bank for GATE Computer Science Engineering.
Information about Relational Algebra Division Operators - 2
Here you can find the meaning of Relational Algebra Division Operators - 2 defined & explained in the simplest way possible.
Besides explaining types of Relational Algebra Division Operators - 2 theory, EduRev gives you an ample number of questions to practice Relational Algebra Division Operators - 2 tests,
examples and also practice Computer Science Engineering (CSE) tests.
|
63 videos|7 docs|165 tests
|
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
Related Searches
Important questions
,ppt
,Objective type Questions
,Semester Notes
,past year papers
,mock tests for examination
,Relational Algebra Division Operators - 2 Video Lecture | Question Bank for GATE Computer Science Engineering - Computer Science Engineering (CSE)
,video lectures
,Relational Algebra Division Operators - 2 Video Lecture | Question Bank for GATE Computer Science Engineering - Computer Science Engineering (CSE)
,Extra Questions
,shortcuts and tricks
,practice quizzes
,Viva Questions
,Exam
,study material
,Summary
,MCQs
,Relational Algebra Division Operators - 2 Video Lecture | Question Bank for GATE Computer Science Engineering - Computer Science Engineering (CSE)
,Previous Year Questions with Solutions
,Free
,Sample Paper
;
Study Relational Algebra Division Operators - 2 on the App
Students of Computer Science Engineering (CSE) can study Relational Algebra Division Operators - 2 alongwith tests & analysis from the EduRev app,
which will help them while preparing for their exam. Apart from the Relational Algebra Division Operators - 2,
students can also utilize the EduRev App for other study materials such as previous year question papers, syllabus, important questions, etc.
The EduRev App will make your learning easier as you can access it from anywhere you want.
The content of Relational Algebra Division Operators - 2 is prepared as per the latest Computer Science Engineering (CSE) syllabus.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup