Data Type Naming Conventions.

Data Type	Example	Prefix
Boolean	blnResult	bln
Byte	bytByte	byt
Char	chrCase	chr
Date	datStart	dat
Double	dblSum	dbl
Decimal	decAverage	dec
Integer	intEmpId	int
Long	lngCounter	lng
Single	sngStock	sng
Short	shoShort	sho
String	strName	str

Most commonly used Hungarian Notations for data types. First three letters of a variable name to distinguish subtype. The fourth letter of the variable is then typed in uppercase, to indicate that this where the actual variable name starts.