Multi-valued attribute dbms, computer science, Basic Computer Science

Assignment Help:
Multi-valued Attribute DBMS
Each multi valued attribute maps into a separate table.
Include also an attribute for the primary key of the entity and relationship type which the attribute belongs to.
The relvar has an attribute for each simple attribute of the multi valued attribute.
This is also a foreign key.
The primary key of this relvar is the combination of all the attributes if the multi valued attribute is simple.
If the multi-valued attribute is composite, the primary key of this relvar may be a combination of some of the attributes.

Related Discussions:- Multi-valued attribute dbms, computer science

Subroutine , Subroutine :   A subroutine  is a type of subprogram, a pi...

Subroutine :   A subroutine  is a type of subprogram, a piece of code within a larger program that performs a specific task and is relatively independent of the remaining code.

How should an ideal hospital software be? , How Should an Ideal Software be...

How Should an Ideal Software be?  It should be easy to operate, with minimal training of nursing personnel.   Should be reliable, and thoroughly tested in various nur

Artificial intelligence-long term goals, Simple Tasks to Accomplish Once...

Simple Tasks to Accomplish Once you've worried for why you're performing AI, what has inspired you and how you're going to approach the job, then you can initialize to think for

Explain the architecture of wap, Question 1 Discuss the benefits and goals...

Question 1 Discuss the benefits and goals of e-commerce Question 2 List and explain the features of portal Question 3 Elaborate the TCP/IP model Question 4 Explain the archi

Microprocessors, what is the role of microprocessors in IT? how they are us...

what is the role of microprocessors in IT? how they are used in medical field? how they are used in our real lifes? how they are used in latest technology?

Basic, WAP TO ACCEPT MARKS OF THREE SUBJECT FOR STUDENT & CALCULATE TOTAL M...

WAP TO ACCEPT MARKS OF THREE SUBJECT FOR STUDENT & CALCULATE TOTAL MARKS AND PERCENTAGE

Program planning (preparation of a flow chart), Program Planning (Preparati...

Program Planning (Preparation of a Flow Chart) A flow chart is a graphic method for indicating a proposed or actual solution to the problem. A flow chart shows the steps a comp

Describe the protocol used by the mmu, Question 1: a) A distinction is...

Question 1: a) A distinction is often made between computer architecture and computer organisation. Describe, using examples, the meaning of computer architecture. b) Name

OPERATING SYSTEM, WHAT IS MULTIPLE CONTIGUOUS VARIABLE PARTITIONING

WHAT IS MULTIPLE CONTIGUOUS VARIABLE PARTITIONING

Hotel database, Create a database,show all ojectives and give a fruitful in...

Create a database,show all ojectives and give a fruitful introduction and also state how it will be implemented

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd