CREATE TABLE table_204_641 (id NUMBER, "pos" CLOB, "no" NUMBER, "driver" CLOB, "constructor" CLOB, "laps" NUMBER, "time/retired" CLOB, "grid" NUMBER, "points" NUMBER)

what is the difference in points between chris amon and jim clark ?
SELECT ABS((SELECT "points" FROM table_204_641 WHERE "driver" = 'chris amon') - (SELECT "points" FROM table_204_641 WHERE "driver" = 'jim clark'))
SELECT ABS((SELECT "points" FROM "table_204_641" WHERE "driver" = 'chris amon') - (SELECT "points" FROM "table_204_641" WHERE "driver" = 'jim clark'))