CREATE TABLE table_63728 ("Rank" FLOAT, "Nation" CLOB, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

What is the average bronze medal when gold is greater than 0, and there is less than 0 silver medals?
SELECT AVG("Bronze") FROM table_63728 WHERE "Gold" > '0' AND "Silver" < '0'
SELECT AVG("Bronze") FROM "table_63728" WHERE "Gold" > '0' AND "Silver" < '0'