Oracle Solution for Error ora-19193

ORA-19193: XQST0045: It is a static error if the function name in a function declaration is in one of the following namespaces: http://www.w3.org/XML/1998/namespace, http://www.w3.org/2001/XMLSchema, http://www.w3.org/2001/XMLSchema-instance, http://www.w3.org/2005/04/xpath-functions, http://www.w3.org/2005/04/xpath-datatypes

What triggered the Error:

error occurred during the processing of the XQuery expression.

What should we do to fix it:

eck the detailed error message for the possible causes.