Tuesday, December 10, 2013

Some Short Note - 1

Data Structure :

Data structure is a logical mathematical way of sorting and organizing data in a computer that can be used efficiently.

Entity:

An entity is something that has certain attributes or properties which may be assigned values. The values themselves may be    either numeric or no-numeric.

Field:

A field is a single elementary unit of information representing an attribute of an entity.


Record:

 A record is the  collection of field values of a given entity.


String: 
A string is a finite sequence of symbols that are chosen from a set or alphabet.

String length:

The string with zero characters in a string is called its length.

Concatenation:
Concatenation is to link together two or more units of  information so that they form one unit.


 

No comments:

Post a Comment