-20382 CONTEXT ITEM CANNOT BE A SEQUENCE WITH MORE THAN ONE ITEM

Explanation
 The initial context item specified as an argument
of XMLQUERY function, or the XMLEXISTS predicate, is a sequence of
more than one item.

System action
 The statement cannot be processed.

User response
 Specify a sequence with a single item as the
context item.

SQLSTATE
 2200V