Selecting top n elements of a group in Oracle

Question

I have an Oracle table which has a name,value,time columns.Basically the table is for logging purposes to store what are the changes made to a particular name,what was the p

Answer 1

select name, VALUE, TIMESTAMP 
from (select name, VALUE, TIMESTAMP, rank() over (partition by NAME order by TIMESTAMP DESC) rank 
     from logs) 
where rank <= 3