CREATE TABLE table_12206918_2 (opponent VARCHAR, result VARCHAR, date VARCHAR)

Who was the opponent when the result was ud 12/12 and date was 1993-05-22?
SELECT opponent FROM table_12206918_2 WHERE result = "UD 12/12" AND date = "1993-05-22"
SELECT "opponent" FROM "table_12206918_2" WHERE "1993-05-22" = "date" AND "UD 12/12" = "result"