CREATE TABLE table_203_771 (id DECIMAL, "#" DECIMAL, "artist" TEXT, "featuring" TEXT, "title" TEXT, "version" TEXT, "length" TEXT)

which title has the most length ?
SELECT "title" FROM table_203_771 ORDER BY "length" DESC LIMIT 1
SELECT "title" FROM "table_203_771" ORDER BY "length" DESC NULLS LAST LIMIT 1