CREATE TABLE table_name_1 (song VARCHAR2, weeks_on_top VARCHAR2, artist VARCHAR2)

Which song by David Essex spent 2 weeks on top of the charts?
SELECT song FROM table_name_1 WHERE weeks_on_top = 2 AND artist = "david essex"
SELECT "song" FROM "table_name_1" WHERE "artist" = "david essex" AND "weeks_on_top" = 2