-- https://docs.oracle.com/en/database/oracle/oracle-database/23/sqlrf/Comments.html
SELECT /*+ STAR_TRANSFORMATION */ s.time_id, s.prod_id, s.channel_id
  FROM sales s, times t, products p, channels c
  WHERE s.time_id = t.time_id
    AND s.prod_id = p.prod_id
    AND s.channel_id = c.channel_id
    AND c.channel_desc = 'Tele Sales';