A www-teach-ict.com miniwebsite
Try these great search terms!
Data Mining
Form Design
Data capture
Survey Services
Data Logging

2. Types of Data

Data comes in many forms, but there some very common types that can represent a wide range of data:

Some of these are:

 

 

 

Data Type Explanation Example
Boolean Can hold one of two values - yes/no; true/false Are you employed - yes/no

 

Integer Holds whole numbers only (positive and negative) Shoe size: 4,5,6,7,8

School years: 7,8,9,10,11,12,13

Real Holds decimal numbers and fractions For storing currency e.g. 12.25 (it cannot store the currency symbol)
Character Anything you see on the keyboard

'b'     '7'     '@'     '%'

Text/String Holds any alphanumeric character, can include numbers and symbols For storing any text e.g. Name, address, telephone number, postcode

 

Copyright © 2006 www.teach-ict.com