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Data types

Different types of data

TermDefinition
String A sequence of characters. Used to store a representation of text 'Hello World' '0300 123 4999' 'me@email.com' .
Character This can contain any keyboard character inclusive of special characters and the return character. a A @ 1
Integer Any whole number (inclusive of negatives and zero). For efficiency, most programming languages will offer a varying size. In increasing order, these are ‘short’, ‘int’ and ‘long’. These can be used when accuracy isn’t of high priority. 42 0 -300
Floating point/ real Real numbers are what you may think of as decimals, i.e. numbers with decimal points. They are often referred to as ‘float’ because 0.00012 is stored as standard form 1.2 x 10‒4, i.e. with a floating decimal point. 3.14159 -0.11 5.0
Boolean Stores whether a condition is TRUE or FALSE. Default is set to FALSE unless defined otherwise. Programming languages that do not support Boolean variables might use integers instead (0 is FALSE and 1 is TRUE). True False
Date/Time A representation of a moment in time. Can be used to return items in either long or short format. 01-Jan-18 01/01/2018 13:00
Created by: 40025655
 

 



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