CREATE TABLE table_7977 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Time" TEXT, "Location" TEXT)

Who was the opponent when he went more than 1 round with a record of 12-7?
SELECT "Opponent" FROM table_7977 WHERE "Round" > '1' AND "Record" = '12-7'
SELECT "Opponent" FROM "table_7977" WHERE "Record" = '12-7' AND "Round" > '1'