Oracle查询被锁的表及进程的方法

Oracle查询可以有多种方法，下面为您介绍的是如何Oracle查询被锁的表及Oracle查询连接的进程的方法，希望对您能够有所帮助。

一、查看被锁的表

select p.spid,a.serial#, c.object_name,b.session_id,b.oracle_username,b.os_user_name from v$process p,v$session a, v$locked_object b,all_objects c where p.addr=a.paddr and a.process=b.process and c.object_id=b.object_id

二、查看连接的进程

SELECT sid, serial#, username, osuser FROM v$session;

三、杀掉进程

alter system kill session ‘sid,serial#’;

四、查看当前用户下表的占用空间

Select Segment_Name, Sum(bytes)/1024/1024 From User_Extents Group By Segment_Name

五、查询所有对象占用空间

select owner, segment_name,sum(bytes/1024/1024)   from   dba_segments group by owner,segment_name

六、查询数据库中各对象占用空间大小

Select Segment_Name,b.object_type, Sum(bytes)/1024/1024 From User_Extents a,user_objects b where a.segment_name=b.object_name Group By Segment_Name,b.object_type order by object_type, Segment_Name

七、Oracle中去除字段中的回车符

update ywj_yxglobj set table_name = replace(table_name,chr(10),”) where table_name like ‘ACCT_INFO%’