CREATE TABLE table_39569 ("Nation" TEXT, "Gold" FLOAT, "Silver" FLOAT, "Bronze" FLOAT, "Total" FLOAT)

Switzerland has how many gold and less than 0 silver?
SELECT MAX("Gold") FROM table_39569 WHERE "Nation" = 'switzerland' AND "Silver" < '0'
SELECT MAX("Gold") FROM "table_39569" WHERE "Nation" = 'switzerland' AND "Silver" < '0'