CREATE TABLE table_1137703_2 (date VARCHAR2, winning_driver VARCHAR2, pole_position VARCHAR2)

On which date was the winning driver Alain Prost and and had Damon Hill in the pole position?
SELECT date FROM table_1137703_2 WHERE winning_driver = "Alain Prost" AND pole_position = "Damon Hill"
SELECT "date" FROM "table_1137703_2" WHERE "Alain Prost" = "winning_driver" AND "Damon Hill" = "pole_position"