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

What are the Proposals for Achieving Mutual Exclusion?, Proposal a) Disabli...

Proposal a) Disabling Interrupts (Hardware Solution) • Every process disables all interrupts just after entering in its critical section and re-enables all interrupts just previous

Simple batch systems, Simple Batch Systems: Early machines were very...

Simple Batch Systems: Early machines were very expensive, and therefore it was important to maximize machine utilization. To improve utilization, the concept of batch operat

Describe FCFS Scheduling algorithm ?, FCFS algorithm also known as: • Firs...

FCFS algorithm also known as: • First-In-First-Out (FIFO) • Run-Until-Done • Run-to-Completion • Possibly, First-Come-First-Served algorithm is the easiest scheduling algorithm i

Technology partnerships, Technology Partnerships: Such agreements prov...

Technology Partnerships: Such agreements provide the consumer un-limited access to vendor's technology. Such contracts are typically multi-year in nature where the consumer pa

Why we need data mining? Give an example to illustrate your, Why we need da...

Why we need data mining? Give an example to illustrate your answer.

Memory, what is cache memory

what is cache memory

Constant , Constant: In contrast to a variable, which is used as ident...

Constant: In contrast to a variable, which is used as identifier for a value and which can change, constants are identifiers that are used for values, which cannot be changed.

Computer graphics, A scaling constant indicates an expansion of length

A scaling constant indicates an expansion of length

Problem solving using a computer, PROBLEM SOLVING USING A COMPUTER The ...

PROBLEM SOLVING USING A COMPUTER The following steps are required for solving a problem using a computer system:     Problem Definition     Program Planning (Preparati

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