How many upstream speeds are there for downstream of 20 mbit/s and bandwidth of 40 gb?
CREATE TABLE "turkey" (
  "downstream" text,
  "upstream" text,
  "bandwidth" text,
  "price_tl" text,
  "every_1_gb" text,
  "max" text
);
SELECT COUNT("upstream") FROM "turkey" WHERE "downstream"='20 Mbit/s' AND "bandwidth"='40 GB';