-16089 AN `expression-type` EXPRESSION AND POSSIBLY OTHER UPDATING EXPRESSIONS IN AN XMLMODIFY FUNCTION INTRODUCE CONFLICTING NAMESPACE BINDINGS INTO AN ELEMENT NAMED `element-name`. THE PREFIX `prefix-string` IS BOUND TO `uri-string` WHILE ANOTHER BINDING OF THE SAME PREFIX USES A DIFFERENT NAMESPACE URI. ERROR QNAME=err:XUDY0024.

Explanation
The combined effect of updating expressions in
the XMLMODIFY function has been to introduce conflicting namespace
bindings into an element node. 
expression-type
The type of expression.
element-name
The name of the XML element.
prefix-string
The prefix. 
uri-string
The URI in the current namespace binding.

Possible causes for this error include:
Two attributes might have been inserted whose QNames have the
same namespace prefix but different namespace URIs. 
If expression-type is "insert" or "replace",
the conflicting namespace bindings might be between two attribute
nodes in the sequence of attribute nodes in the insertion sequence
or replacement sequence. 
A namespace binding might have been introduced to the indicated
element for an attribute node that was inserted or replaced by another
updating expression in the same XMLMODIFY function.

System action
The XQuery expression
cannot be processed.

Programmer response
If the expression is intentionally introducing
a new namespace binding, modify the expression so that is uses a namespace
prefix that is different from all other prefixes used in the updating
expressions of the same XMLMODIFY function that have the indicated
element as the target or parent of an attribute node target. Otherwise,
modify the expression so that the binding of the prefix uses the same
URI as the other namespace bindings used in the updating expressions
of the same XMLMODIFY function that have the indicated element as
the target or parent of an attribute node target.

SQLSTATE
10708