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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.

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Memory representation of Linked List

             In memory the linked list is stored in scattered cells (locations).The memory for each node is allocated dynamically means as and when required. So the Linked List can increase as per the user wish and the size is not fixed, it can vary.

               Suppose first node of linked list is allocated with an address 1008. Its graphical representation looks like the figure shown below:


      Suppose next node is allocated at an address 506, so the list becomes,



  Suppose next node is allocated with an address with an address 10,s the list become,


The other way to represent the linked list is as shown below:




 In the above representation the data stored in the linked list is “INDIA”, the information part of each node contains one character. The external pointer root points to first node’s address 1005. The link part of the node containing information I contains 1007, the address of next node. The last node …