Oracle 查看表空间使用率的sql语句:
select *
from (
Select a.tablespace_name,
to_char(a.bytes / 1024 / 1024, '99,999.999') total_bytes,
to_char(b.bytes / 1024 / 1024, '99,999.999') free_bytes,
to_char(a.bytes / 1024 / 1024 - b.bytes / 1024 / 1024,'99,999.999') use_bytes,
to_char((1 - b.bytes / a.bytes) * 100, '99.99') || '%' use
from (select tablespace_name, sum(bytes) bytes from dba_data_files group by tablespace_name) a,
(select tablespace_name,sum(bytes) bytes from dba_free_space group by tablespace_name) b
where a.tablespace_name = b.tablespace_name
)
union all
(select c.tablespace_name,
to_char(c.bytes / 1024 / 1024, '99,999.999') total_bytes,
to_char((c.bytes - d.bytes_used) / 1024 / 1024,'99,999.999') free_bytes,
to_char(d.bytes_used / 1024 / 1024, '99,999.999') use_bytes,
to_char(d.bytes_used * 100 / c.bytes, '99.99') || '%' use
from (select tablespace_name, sum(bytes) bytes from dba_temp_files group by tablespace_name) c,
(select tablespace_name, sum(bytes_cached) bytes_used from v$temp_extent_pool group by tablespace_name) d
where c.tablespace_name = d.tablespace_name
)
参考:https://blog.csdn.net/mchdba/article/details/51685173