CREATE TABLE table_204_243 (id DECIMAL, "year" DECIMAL, "album" TEXT, "song" TEXT, "duration" TEXT, "artist" TEXT)

how many years were between the albums only one and toheart ?
SELECT ABS((SELECT "year" FROM table_204_243 WHERE "album" = 'only one') - (SELECT "year" FROM table_204_243 WHERE "album" = 'toheart'))
SELECT ABS((SELECT "year" FROM "table_204_243" WHERE "album" = 'only one') - (SELECT "year" FROM "table_204_243" WHERE "album" = 'toheart'))