For anyone who's interested, I've posted a few ideas in the Groundbreakers community: SELECT 1, rather than SELECT 1 FROM DUAL Fully support the VALUES clause Support the FILTER clause SQL Developer: Generate WITH clause from resultset Object Types: modify_object_attribute() function Update Oracle Live SQL's db from 19c to 21c Live SQL: Return SDO_GEOMETRY as GeoJSON instead of JSON generate_series() function Cheers.