感觉这个还不错，分享给大家
--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;