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

Rental model, Rental model: This has come into picture as Software as...

Rental model: This has come into picture as Software as a Service (SaaS) and Platform as a Service (PaaS) models have evolved over a period of time. Here, the buyer need not

Long term goal of artificial intelligence, Long term goal of artificial int...

Long term goal of artificial intelligence: This is not to be complex with the applications of AI programs to other sciences, discussed later. Rather, it is just pointing out th

HOMEWORK 9.., AsBased on Chapter Review Problems from the book. 1 #1. Wh...

AsBased on Chapter Review Problems from the book. 1 #1. What is meant by data independence? Explain your answer. #2. Identify two benefits of separating application software fr

Internet, Explain how the internet works

Explain how the internet works

Constant bit rate atm theory, For the connections that request a static amo...

For the connections that request a static amount of bandwidth that is continuously available during the connection lifetime. Is intended to support real time applications requiring

Probability, Mike sells on the average 15 newspapers per week (Monday – Fri...

Mike sells on the average 15 newspapers per week (Monday – Friday). Find the probability that 2.1 In a given week he will sell all the newspapers [7] 2.2 In a given day he will sel

Moderns, Moderns: As it was explained earlier, communications channels...

Moderns: As it was explained earlier, communications channels can operate in either the Analog or digital mode. However, a given circuit can operate only in one mode not both

Ipx for lan, explain ipx for lan and spx

explain ipx for lan and spx

Data transmission, DATA TRANSMISSION: When we talk on the telephone we...

DATA TRANSMISSION: When we talk on the telephone we generally transmit a message to someone else. The message is made up of words that we speak into the telephone instrument.

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