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Schema Tutorial

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XSD Miscellaneous Data Types

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Other miscellaneous data types are boolean, base64Binary, hexBinary, float, double, anyURI, QName, and NOTATION.

Boolean Data Type

The boolean data type is used to specify a true or false value.

The following is an example of a boolean declaration in a schema:

<xs:attribute name="disabled" type="xs:boolean"/>

An element in your document might look like this:

Note: Legal values for boolean are true, false, 1 (which indicates true), and 0 (which indicates false).

Binary Data Types

Binary data types are used to express binary-formatted data.

We have two binary data types:

base64Binary (Base64-encoded binary data)
hexBinary (hexadecimal-encoded binary data)

The following is an example of a hexBinary declaration in a schema:

<xs:element name="blobsrc" type="xs:hexBinary"/>

AnyURI Data Type

The anyURI data type is used to specify a URI.

The following is an example of an anyURI declaration in a schema:

<xs:attribute name="src" type="xs:anyURI"/>

An element in your document might look like this:

Note: If a URI has spaces, replace them with %20.

Miscellaneous Data Types

Name	Description
anyURI
base64Binary
boolean
double
float
hexBinary
NOTATION
QName

Restrictions on Miscellaneous Data Types

Restrictions that can be used with the other data types:

enumeration (a Boolean data type cannot use this constraint)
length (a Boolean data type cannot use this constraint)
maxLength (a Boolean data type cannot use this constraint)
minLength (a Boolean data type cannot use this constraint)
pattern
whiteSpace