Add row number to MySql query

row-num.sql

SELECT * FROM 
(
	SELECT
		@i:=@i+1 AS rownum, 
		subq.*
	FROM
	(
		SELECT id,date FROM articles 
	) subq,
	(SELECT @i:=0) r
	ORDER BY date ASC
) _tmp
WHERE rownum > 3 
LIMIT 10