Oracle Solution for Error ora-30948

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

What triggered the Error:

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

What should we do to fix it:

Ensure that the XML schema changes specified in the XMLDiff argument to DBMS_XMLSCHEMA.inPlaceEvolve are permitted. ///// End of XML Schema Evolution errors (30942 to 30950 reserved)