The NAMESPACE clause sets or identifies the namespaces that are contained in an XML document.
Format
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Syntax Rules:
- Data-name-1 is an alphanumeric data item which contains the namespace URI (Uniform Resource Identifier).
- Literal-1 is a fixed namespace URI.
- If the NAMESPACE clause appears on a group item's declaration, then data-item-1 must be defined directly within that group
item.