Oracle表空间管理查看，扩充

1.查看表空间使用率（包括临时表空间）
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
)

order by tablespace_name

2.查看文件是否自动扩展
select d.file_name,d.tablespace_name,d.autoextensible from dba_data_files d
如果想查看临时表空间文件是否自动扩展
select d.file_name,d.tablespace_name,d.autoextensible from dba_temp_files d;
3.对临时文件进行扩展。

1）TOSTEMP表空间使用率接近100%，对它进行扩展。

SQL> alter database tempfile  'C:xxxxxx\TOSTEMP01.DBF'resize 500M;
2）若是发现 表空间使用率接近100%，且不可扩展修改文件自动可扩展性
alter database datafile 'E:xxxxxxESCALADE.ORA' autoextend on;

3）修改可扩展上限为无限制

SQL> alter database tempfile ‘/u01/app/oracle/oradata/orcl/temp01.dbf’ autoextend on next 5m maxsize unlimited;