Oracle Error Message
ORA-30937: No schema definition for ‘string’ (namespace ‘string’) in parent ‘string’
Reason for the Error
The schema definition for the parent node being processed does not allow for the specified child node in its content model. Note that any typecasting via xsi:type must occur before the schema definitions for the new type can be used.
Solution
Only insert elements and attributes declared in the schema. Check to make sure that xsi:type (if used) is specified first.