CREATE TABLE table_203_406 (id NUMBER, "entrant" CLOB, "constructor" CLOB, "chassis" CLOB, "engine" CLOB, "tyre" CLOB, "driver" CLOB, "rounds" CLOB)

what is the total amount of times porsche is a constructor ?
SELECT COUNT(DISTINCT "entrant") FROM table_203_406 WHERE "constructor" = 'porsche'
SELECT COUNT(DISTINCT "entrant") FROM "table_203_406" WHERE "constructor" = 'porsche'