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

Mainframe architecture, Mainframe Architecture: Till a few decades bac...

Mainframe Architecture: Till a few decades back, all computing was controlled through the central mainframes server. Multiple users could connect to the central host through u

Networking.., write advantages and disadvantages of private and public netw...

write advantages and disadvantages of private and public network

How to Open a FCB files?, Opening files 0FH function is used to open an F...

Opening files 0FH function is used to open an FCB file the 21H interruption. The element, the name and extension of the file must be initialized previous to opening it. The DX regi

Disk output, Disk output : You will already have decided whether to u...

Disk output : You will already have decided whether to use a hard disk or floppies for storing data. An important point of disk management is to ensure a secure method of kee

Data Type Conversion, Sometimes you may drop to perform conversions among t...

Sometimes you may drop to perform conversions among the built-in types. To translate between types you just use the type name as a function. There are quite a few built-in function

Android database file not loading on real device, i have an android app whi...

i have an android app which uses a database file called question db which is stored in the assets file. I have tried a database example called android application development but f

Language of digital computers, Language of Digital Computers: Digital ...

Language of Digital Computers: Digital computers are electronic devices which operate on two valued logic (On and OFF). The ability of a transistor to act as a switch is the k

A* search-artificial intelligence, A* Search-Artificial intelligence:  ...

A* Search-Artificial intelligence:   A* search combines the best parts of uniform cost search that  called the fact that it's optimal and complete, and the best parts of gre

C, A palindrome is a string that reads the same from both the ends. Given a...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

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