CREATE TABLE routes (dst_apid VARCHAR)
CREATE TABLE airports (apid VARCHAR, country VARCHAR)

Find the number of routes with destination airports in Italy.
SELECT COUNT(*) FROM routes AS T1 JOIN airports AS T2 ON T1.dst_apid = T2.apid WHERE T2.country = 'Italy'
SELECT COUNT(*) FROM "routes" AS "T1" JOIN "airports" AS "T2" ON "T1"."dst_apid" = "T2"."apid" AND "T2"."country" = 'Italy'