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

Dbms, Explain displaying an er schema as an er diagram, Database Management...

Explain displaying an er schema as an er diagram, Database Management System

Programming, create a simple Visual Basic project

create a simple Visual Basic project

Evolution of a computer, EVOLUTION OF A COMPUTER: Although 'computer',...

EVOLUTION OF A COMPUTER: Although 'computer', as we understand it today, is relatively of recent innovation, its development rests on centuries' of research. This section pres

Development of UNIX , Development of UNIX: The original UNIX developme...

Development of UNIX: The original UNIX development was performed on a Digital PDP-7 minicomputer and later moved to a PDP-11 minicomputer, the forerunner of the VAX computer.

Array, An array A is said to be special if all its elements are same. Given...

An array A is said to be special if all its elements are same. Given an array, your task is to convert the array to special array by performing some operations. The allowed operati

Simulated annealing-artificial intelligence, Simulated Annealing One wa...

Simulated Annealing One way to answer the problem of local maxima and related problems like ridges and plateaux in hill climbing is to permit the agent to go downhill to some e

Artificial intelligence-representations/languages used, Many persons are ta...

Many persons are taught AI with the opening line: " The three most important things in AI are representation, representation and representation ". While selecting the method of

Explain fdma and tdma concepts, Question 1 Explain Wireless Protocol Requi...

Question 1 Explain Wireless Protocol Requirements and also explain in brief medium access control protocol Question 2 Explain FDMA and TDMA concepts Question 3 Exp

Programming, write a program to display the first ten terms of the series 2...

write a program to display the first ten terms of the series 2,5,10,17,...........

What isit, what can you do and what and how who can becbgbfbvuidfgvbkjfdhvb...

what can you do and what and how who can becbgbfbvuidfgvbkjfdhvb98dshrnfjkbhqdbnfiubnfdjbhdfiubndfubhfdbhfdiubhdfuibhyfdubhdfbhfbhdf8u

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