CREATE TABLE table_16796625_1 (code VARCHAR, municipality VARCHAR, population VARCHAR)

How many codes have a population of 598 in Vellinge Municipality?
SELECT COUNT(code) FROM table_16796625_1 WHERE municipality = "Vellinge municipality" AND population = 598
SELECT COUNT("code") FROM "table_16796625_1" WHERE "Vellinge municipality" = "municipality" AND "population" = 598