CHECK TABLESPACE SIZE, FREE AND USED SPACE

Below query is used for finding total tablespace size and free, used space.

select tablespace_name, ROUND(bytes_free,2) free,ROUND(bytes_total-bytes_free,2) used, ROUND(bytes_total,2) total,perused
from (select a.tablespace_name, a.bytes_free,b.bytes_total,
ROUND((100-(100*a.bytes_free/b.bytes_total)),2) perused from
(Select tablespace_name,sum(bytes)/1024/1024 bytes_free From dba_free_space Group by tablespace_name) a,
(Select tablespace_name,sum(bytes)/1024/1024 bytes_total From dba_data_files Group by tablespace_name) b
where a.tablespace_name=b.tablespace_name) where perused >= 0 ORDER BY tablespace_name;

Thank You !!

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