Derived Data Types in XML Schemas

Introduction

Derived data types are defined by using other data types called base types. Base data types can either be primitive or derived data types. Derived data types can be built-in or user-defined. For example, integer is a built-in data type that is derived from the decimal data type.

Derived Data Types	Base Data Type	Description
Integer	Decimal	Represents a sequence of decimal digits with an optional leading sign (+ or -)
long	Integer	Represents a value within the range -9223372036854775808 to 9223372036854775807
nonNegativeInteger	Integer	Represents an integer that is greater than or equal to zero
Positive Integer	nonNegativeInteger	Represents an integer greater than zero
int	Long	Represents an integer within the range -2147483648 to 2147483747
time	recurringDuration	Represents an instance of time that recurs every day.
date	timeDuration	Represents a time period that starts at the midnight of a particular day and ends at the next midnight.