Oracle : Ошибка ORA-30991

"cannot use DOM to add special attribute to schema-based parent"
*Cause: An attempt was made to add or remove an xsi:schemaLocation,
xsi:noNamespaceSchemaLocation, xsi:type, or xsi:nil attribute
to or from a schema-based XML node using DOM.
*Action: Use the updateXML operator instead of DOM.

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