This is a script to get the tablespace utilization in Oracle Database 12c. You can use this script to get the tablespace utilization ALLOCATED(MB), USED(MB) and Used parentage for all containers tablespaces.
sqlplus -s / as sysdba
set pages 80
set lin 120
set echo off
set feed off
column PCT format 999.99
column tbspce format A30
col container for a30
select substr(f.tablespace_name,1,30) tbspce,
round(f.tsbytes/(1024*1024),0) "ALLOCATED(MB)",
round(nvl(s.segbytes,0)/(1024*1024),0) "USED(MB)",
round((nvl(s.segbytes,0)/f.tsbytes)*100,2) PCT,
lower(vc.name) as container
from
(select con_id,tablespace_name,sum(bytes) tsbytes from cdb_data_files group by con_id,tablespace_name) f,
(select con_id,tablespace_name,sum(bytes) segbytes from cdb_segments group by con_id,tablespace_name) s,
v$containers vc
where f.con_id=s.con_id(+)
and f.tablespace_name=s.tablespace_name(+)
and f.con_id=vc.con_id
order by container, tbspce;