Oracle 手工清理临时段

http://www.xifenfei.com/2015/12/type%E4%B8%BAtemporaryname%E4%B8%BAfile-block%E5%AF%B9%E8%B1%A1%E9%87%8D%E7%8E%B0%E5%92%8C%E6%B8%85%E7%90%86.html

跟他里边描述的不太一样，按他写的方法无法进行清理。

继续查发现一篇文章介绍的情况跟我的比较相似，http://blog.chinaunix.net/uid-22948773-id-3758510.html

重启数据库或用下面的方法清理：

alter session set events ‘immediate trace name DROP_SEGMENTS level TS#+1‘;

level - tablespace number+1. If the value is 2147483647 then
             temp segments in ALL tablespaces are dropped, otherwise, only
             segments in a tablespace whose number is equal to the LEVEL
             specification are dropped.

1、查询所在表空间的编号

SQL> select ts# from v$tablespace where name=‘E2TEST‘;

       TS#
----------
         5

2、使用上述方法清理

SQL> alter session set events ‘immediate trace name DROP_SEGMENTS level 6‘;

Session altered.

3、再次查看最大的TEMPORY段已经没有了，表空间也彻底被释放了

SQL> select * from (select owner,segment_name,segment_type,sum(bytes)/1024/1024 from dba_segments where tablespace_name=‘E2TEST‘ group by owner,segment_name,segment_type order by 4 desc ) where rownum < 50;

OWNER                          SEGMENT_NAME                                                                      SEGMENT_TYPE       SUM(BYTES)/1024/1024
------------------------------ --------------------------------------------------------------------------------- ------------------ --------------------
E2TEST                      T_CONT                                                                            TABLE                             12332
E2TEST                      SYS_LOB0000017851C00008$$                                                         LOBSEGMENT                         9834
E2TEST                      ERMSGLOG                                                                          TABLE                              5974

TABLESPACE_NAME                SIZE_G          FREE_G          USED_PCT
------------------------------ --------------- --------------- ----------
E2TEST                               96.00           31.68    67.00%

本文出自 “DBA Fighting!” 博客，请务必保留此出处http://hbxztc.blog.51cto.com/1587495/1877451

Oracle 手工清理临时段

标签：oracle temporary