SELECT director FROM movie WHERE YEAR  =  2000 INTERSECT SELECT director FROM movie WHERE YEAR  =  1999
Show all director names who have a movie in both year 1999 and 2000.
SELECT director FROM movie WHERE YEAR = 2000 INTERSECT SELECT director FROM movie WHERE YEAR = 1999
select director from movie where year = value intersect select director from movie where year = value
Show all director names who have a movie in both year 1999 and 2000 .