SELECT sd.Num as Num,sd.Type as Type,sd.Value as Value,li.Date as Date,li.uid as Unit 
FROM save_data sd 
INNER JOIN (
	SELECT Num_i as Num, Date, ul.uname as uid 
	FROM info inf 
	INNER JOIN (
		SELECT uNum,uName as uname FROM units_list) as ul
	ON inf.Prib_id = ul.uNum ORDER BY inf.Num_i DESC) as li
ON li.Num = sd.Num