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

Port in a computer, what is the need of a port in a computer?

what is the need of a port in a computer?

Discuss about xpointer, Question 1 How PHP works? Explain the structure of...

Question 1 How PHP works? Explain the structure of PHP Question 2 Write a note on links and webs Question 3 Explain why do you need Document Type Definition (DTD)?

Computer system architecture, 1. Suppose that the meaning of the BUN instru...

1. Suppose that the meaning of the BUN instruction of the Basic Computer is changed to implement the relative addressing mode, i.e PC a) Write an optimal operation sequence to im

Data Mining Assignment (by Weka), Hi there, I''m just asking that do you d...

Hi there, I''m just asking that do you do data mining assignment?

Differentiate the client–server and peer-to-peer models of d, The client-se...

The client-server model firmly differentiates the roles of the client and server. According to this model, the client requests services that are provided by the server. The peer-to

Examples of online databases, Examples of Online Databases: The adopti...

Examples of Online Databases: The adoption of modern technology has resulted in the proliferation of machine readable databases. The National Library of Medicine (USA) designe

Discuss the anatomy of xml document, Question 1 What is web browser? List ...

Question 1 What is web browser? List and explain the most common used web server Question 2 Discuss the anatomy of XML document Question 3 Discuss the various attr

Use photoshop to create the images, Use the skills that you have learned in...

Use the skills that you have learned in Photoshop to create the following images that could be used in your upcoming web project. All images should be cohesive and complement each

Classify computer system according to capacity, classify computer system ac...

classify computer system according to capacity. how they are different from computer according to the classification of technology.provide the comparative study also.

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