CREATE TABLE table_203_497 (id NUMBER, "rank" NUMBER, "nation" CLOB, "gold" NUMBER, "silver" NUMBER, "bronze" NUMBER, "total" NUMBER)

what was the number of silver medals won by pakistan ?
SELECT "silver" FROM table_203_497 WHERE "nation" = 'pakistan'
SELECT "silver" FROM "table_203_497" WHERE "nation" = 'pakistan'