CREATE TABLE table_75847 ("Date" TEXT, "Venue" TEXT, "Score" TEXT, "Result" TEXT, "Competition" TEXT)

What date has 2006 fifa world cup qualification as the competition, and alamodome, san antonio, united States as the venue?
SELECT "Date" FROM table_75847 WHERE "Competition" = '2006 fifa world cup qualification' AND "Venue" = 'alamodome, san antonio, united states'
SELECT "Date" FROM "table_75847" WHERE "Competition" = '2006 fifa world cup qualification' AND "Venue" = 'alamodome, san antonio, united states'