2.58 Null

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The Null element specifies a null value node in a query expression tree.

The Null element has no properties; that is, it has no child elements, no attributes, and no assigned value. If the Null element is present, the parent Expression element has the value NULL.

The following is the parent element of the Null element.

Parent elements

Expression

The following is the XML Schema definition of the Null element.           

 <xsd:complexType name="NullType" />