CREATE TABLE table_6189 ("Date" TEXT, "Opponent" TEXT, "Venue" TEXT, "Result" TEXT, "Attendance" TEXT)

When has a Result of 0 2 and a Opponent of aberdeen?
SELECT "Date" FROM table_6189 WHERE "Result" = '0–2' AND "Opponent" = 'aberdeen'
SELECT "Date" FROM "table_6189" WHERE "Opponent" = 'aberdeen' AND "Result" = '0–2'