ORA-30095
table created/altered with TIMESTAMP WITH TIME ZONE not allowed at current DST upgrade stage
Cause
An attempt was made to create or alter a table to have columns of TIMESTAMP WITH TIME ZONE data type or user-defined data types involving TIMESTAMP WITH TIME ZONE data type when DST upgrade is in BEGIN UPGRADE stage.
Action
Re-issue create/alter table DDL after DBMS_DST.BEGIN_UPGRADE is complete.