ORA-42443
source_or_destination KEY is not specified for view graph element table element_table.
- source_or_destination: Either the SOURCE or DESTINATION word.
- element_table: The element table for which the SOURCE KEY or DESTINATION KEY is missing.
Cause
Source or destination key inference is not supported for view graph element tables.
Action
Explicitly specify the source or destination key columns using the SOURCE KEY or DESTINATION KEY clause.