CREATE TABLE table_204_243 (id NUMBER, "year" NUMBER, "album" CLOB, "song" CLOB, "duration" CLOB, "artist" CLOB)

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'))