① 先通过top命令查看产用资源较多的spid号
select sid,serial#,machine,username,program,sql_hash_value,sql_id,
select sql_text
from v$sqltext_with_newlines
where hash_value = hash_value
order by piece;
也可直接使用:
select a.*,b.SQL_TEXT from (
) a,v$sql b
where a.sql_id? = b.SQL_ID(+)
Alter system kill session 'SID,SERIAL#'
解锁:
①查询哪些对象被锁:
? select object_name,machine,s.sid,s.serial#
? from v$locked_object l,dba_objects o ,v$session s
? where l.object_id = o.object_id and l.session_id=s.sid;
? select spid, osuser, s.program
? from v$session s,v$process p
在对指定表做append操作,其他再做truncate时候,会产生锁表,如下验证步骤,
①.、创建测试表,
select b.object_name, t.*
from v$locked_object t, user_objects b
where t.object_id = b.object_id
查询锁表
select object_name, machine, s.sid, s.serial#
from v$locked_object l, dba_objects o, v$session s
where l.object_id = o.object_id
and l.session_id = s.sid;
解表
ALTER system kill session 'sid, serial#';
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