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

how many drivers had constructors other than brabham repco ?
SELECT COUNT("driver") FROM table_204_641 WHERE "constructor" <> 'brabham-repco'
SELECT COUNT("driver") FROM "table_204_641" WHERE "constructor" <> 'brabham-repco'