--查看表空间目录:
select from dba_data_files where tablespace_name = 'SYSAUX';
--2.查看表空间使用率:
select a.tablespace_name,a.bytes/1024/1024 "Sum MB",(a.bytes-b.bytes)/1024/1024 "used MB",b.bytes/1024/1024 "free MB",round(((a.bytes-b.bytes)/a.bytes)
100,2) "percent_used"
from
(select tablespace_name,sum(bytes) bytes from dba_data_files group by tablespace_name) a,
(select tablespace_name,sum(bytes) bytes,max(bytes) largest from dba_free_space group by tablespace_name) b
where a.tablespace_name=b.tablespace_name
order by ((a.bytes-b.bytes)/a.bytes) desc

--3. 增添表空间巨细:
alter tablespace SYSAUX
add datafile 'D:\ORACLEDATA\ORCL\SYSAUX03.DBF'
size 2048M;

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