Oracle Error ORA-30948: Illegal in-place XML schema evolution operation: string

Oracle Error Message

ORA-30948: Illegal in-place XML schema evolution operation: string

Reason for the Error

An attempt was made to make an XML schema change that is not permitted through in-place XML schema evolution.

Solution

Ensure that the XML schema changes specified in the XMLDiff argument to DBMS_XMLSCHEMA.inPlaceEvolve are permitted.