How to check tablespace size.

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Below sql query is used to find total tablespace size of your database. which includes Tablespace name used size in MB, free size in MB and Total size in MB


Sql command which fetch tablesapce size in GB Click here to get sample output

select d.tablespace_name "Tablespace",
totalusedspace "Used MB",
(d.totalspace - s.totalusedspace) "Free MB",
d.totalspace "Total MB",
round(100 * ( (d.totalspace - s.totalusedspace)/ d.totalspace)) "Pct. Free"
from
(select tablespace_name,
round(sum(bytes) / 1048576) TotalSpace
from dba_data_files
group by tablespace_name) d,
(select round(sum(bytes)/(1024*1024)) totalusedspace, tablespace_name
from dba_segments
group by tablespace_name) s
where d.tablespace_name = s.tablespace_name ;


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