CREATE TABLE table_name_34 (silver INT, rank VARCHAR, gold VARCHAR, total VARCHAR)

How much silver does the rank have that has gold smaller than 4, and a total of 1 and a rank larger than 6?
SELECT SUM(silver) FROM table_name_34 WHERE gold < 4 AND total = 1 AND rank > 6
SELECT SUM("silver") FROM "table_name_34" WHERE "gold" < 4 AND "rank" > 6 AND "total" = 1