CREATE TABLE table_45871 ("Res." TEXT, "Record" TEXT, "Opponent" TEXT, "Method" TEXT, "Event" TEXT, "Round" FLOAT, "Location" TEXT)

What is Method, when Opponent is 'Chalid Arrab'?
SELECT "Method" FROM table_45871 WHERE "Opponent" = 'chalid arrab'
SELECT "Method" FROM "table_45871" WHERE "Opponent" = 'chalid arrab'