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

Explain the tcp/ip reference model with diagram, Question 1 Define the fol...

Question 1 Define the following terms                                   1) Analog Signals and Digital Signals 2) Composite signals Question 2 Define the following terms

Operating systems, Operating Systems: The operating system is the soft...

Operating Systems: The operating system is the software that mediates between the applications programs and a level of instructions nearer to the machine's operations. In othe

Backup storage, Backup Storage: Back up (backing) storage, also termed...

Backup Storage: Back up (backing) storage, also termed external storage, is used to hold programs and data which are read into internal storage when required. The most common

Grammar, Given the following grammar: -> [ , ] | -> | { } -> a...

Given the following grammar: -> [ , ] | -> | { } -> a | b | cwhich are the strings generated by the grammar? Show the parse tree(s). a). { [ a , b ] }b). [ { a } , b ]

Digitalelectronics, what duality principle and huntington postulates

what duality principle and huntington postulates

What is Assembly Language?, Assembly language is fundamentally the local la...

Assembly language is fundamentally the local language of your computer. In principle the processor of your machine understands machine code (consisting of ones and zeroes). But wit

Spidering or web crawling, Spidering or Web crawling: Spider or Web c...

Spidering or Web crawling: Spider or Web crawler is a computer program that browses the web pages of WWW in a systematic, automated manner. Search Engines use spider for gett

Working of web browser, Working of web Browser:   Internet is character...

Working of web Browser:   Internet is characterized by the Client Server Computing that consists of three basic components: The Web client which may be the web browser;

What is atm, ATM = Asynchronous Transfer Mode Fast packet switching and mul...

ATM = Asynchronous Transfer Mode Fast packet switching and multiplexing technology (cell-based ) Support the universe of services voice, video and data traffic Provides quality of

Describe counting instructions, They are used to reduce or enlarge the cont...

They are used to reduce or enlarge the content of the counters. DEC INC DEC INSTRUCTION Idea: To diminish the operator. Syntax: DEC destiny This action subtracts 1 from the destiny

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