REM List the details of Database growth per month. It lists the total size of all datafiles, grouped by the month in which they are created
REM to launch under SVRMGR

select to_char(creation_time, 'RRRR Month') "Month",
sum(bytes)/1024/1024 "Growth in Meg"
from sys.v_$datafile
where creation_time > SYSDATE-365
group by to_char(creation_time, 'RRRR Month');