CREATE TABLE table_name_38 (silver NUMBER, bronze VARCHAR2, rank VARCHAR2, total VARCHAR2)

On average, what is the number of silver medals for nations ranking higher than 7, with a total of 6 medals and fewer than 2 bronze medals?
SELECT AVG(silver) FROM table_name_38 WHERE rank > 7 AND total = 6 AND bronze < 2
SELECT AVG("silver") FROM "table_name_38" WHERE "bronze" < 2 AND "rank" > 7 AND "total" = 6