Oracle - Get information about the size of the database
On May 31,2022 by Tom Routley
The size of the database corresponds to the total size of the physical data files. This query will help you to manage the size of your database.
clear breaks
clear computes
clear columns
set pagesize 50
set linesize 120
set heading on
column tablespace_name heading 'Tablespace' justify left format a20 truncated
column tbsize heading 'Size|(Mb) ' justify left format 9,999,999.99
column tbused heading 'Used|(Mb) ' justify right format 9,999,999.99
column tbfree heading 'Free|(Mb) ' justify right format 9,999,999.99
column tbusedpct heading 'Used % ' justify left format a8
column tbfreepct heading 'Free % ' justify left format a8
break on report
compute sum label 'Totals:' of tbsize tbused tbfree on report
select ablespace_name, round(a.bytes,2) tbsize,
nvl(round(c.bytes,2),'0') tbfree,
nvl(round(b.bytes,2),'0') tbused,
to_char(round(100 * (nvl(b.bytes,0)/nvl(a.bytes,1)),2)) || '%' tbusedpct,
to_char(round(100 * (nvl(c.bytes,0)/nvl(a.bytes,1)),2)) || '%' tbfreepct
from dba_tablespaces t,
(select tablespace_name, round(sum(bytes)/1024/1024,2) bytes
from dba_data_files
group by tablespace_name
union
select tablespace_name, round(sum(bytes)/1024/1024,2) bytes
from dba_temp_files
group by tablespace_name ) a,
(select eablespace_name, round(sum(e.bytes)/1024/1024,2) bytes
from dba_segments e
group by eablespace_name
union
select tablespace_name, sum(max_size) bytes
from v$sort_segment
group by tablespace_name) b,
(select ablespace_name, round(sum(f.bytes)/1024/1024,2) bytes
from dba_free_space f
group by ablespace_name
union
select tmablespace_name, (sum(bytes/1024/1024) - sum(max_size)) bytes
from dba_temp_files tmp, v$sort_segment sort
where tmablespace_name = sorablespace_name
group by tmablespace_name) c
where
ablespace_name = aablespace_name (+)
and ablespace_name = bablespace_name (+)
and ablespace_name = cablespace_name (+)
order by ablespace_name
Thanks to wjaouadi for the code!!
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