CREATE TABLE table_204_114 (id NUMBER, "pos" CLOB, "rider" CLOB, "manufacturer" CLOB, "time/retired" CLOB, "grid" NUMBER, "points" NUMBER)

what is the difference in points scored between erwan nigon and dirk heidolf ?
SELECT ABS((SELECT "points" FROM table_204_114 WHERE "rider" = 'erwan nigon') - (SELECT "points" FROM table_204_114 WHERE "rider" = 'dirk heidolf'))
SELECT ABS((SELECT "points" FROM "table_204_114" WHERE "rider" = 'erwan nigon') - (SELECT "points" FROM "table_204_114" WHERE "rider" = 'dirk heidolf'))