oracle 產看表空間
select total.name "tablespace name",
free_space, (total_space-free_space) used_space, total_space
from
(select tablespace_name, sum(bytes/1024/1024) free_space
from sys.dba_free_space
group by tablespace_name
) free,
(select b.name, sum(bytes/1024/1024) total_space
from sys.v_$datafile a, sys.v_$tablespace b
where a.ts# = b.ts#
group by b.name
) total
where free.tablespace_name = total.name
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