CREATE TABLE table_name_76 (noof_settlements NUMBER, district VARCHAR2, pop_dens VARCHAR2)

How many settlements are in esk krumlov (ck) with a population density higher than 38?
SELECT SUM(noof_settlements) FROM table_name_76 WHERE district = "český krumlov (ck)" AND pop_dens > 38
SELECT SUM("noof_settlements") FROM "table_name_76" WHERE "district" = "český krumlov (ck)" AND "pop_dens" > 38