CREATE TABLE table_name_78 (losses NUMBER, draws VARCHAR2, byes VARCHAR2)

What is the average number of losses for teams with 0 draws and 0 byes?
SELECT AVG(losses) FROM table_name_78 WHERE draws = 0 AND byes < 0
SELECT AVG("losses") FROM "table_name_78" WHERE "byes" < 0 AND "draws" = 0