–獲取鎖的基本資訊
select sess.sid,
sess.serial#,
lo.oracle_username,
lo.os_user_name,
ao.object_name,
lo.locked_mode
from v$locked_object lo,
dba_objects ao,
v$session sess
where ao.object_id = lo.object_id and lo.session_id = sess.sid;
select l.session_id sid,
s.serial#,
l.locked_mode,
l.oracle_username,
s.user#,
l.os_user_name,
s.machine,
s.terminal,
a.sql_text,
a.action
from v$sqlarea a,
v$session s,
v$locked_object l
where l.session_id = s.sid
and s.prev_sql_addr = a.address
order by sid, s.serial#;
select distinct aa.sql_text,
t2.osuser,
t2.username,
t2.sid,
'alter system kill session '
''|| t2.sid||
','||t2.serial#||
''''
||';'
, t2.logon_time,
aa.first_load_time 操作時間,
t2.sql_id,
t2.process,
t2.machine,
aa.module,
aa.action,
ab.event 事件
from v$locked_object t1, v$session t2, v$sql aa,v$session_wait ab
where t1.session_id = t2.sid
and t2.sql_id = aa.sql_id
and t2.sid=ab.sid
order by t2.logon_time;
當session是active的時候，alter system kill session 只是將session標識為killed
或者pseudo狀態，並不會釋放session持有的資源，所以我們在執行完alter system kill session 後，看會話還
是一直存在。
這種情況下可以使用 immediate選項，強制立即kill會話，如下：
alter system kill session '3964,51752' immediate；
select s.sid
, s.serial#
, s.username
, s.osuser
, s.program
, s.event
,to_char
(s.logon_time,
'yyyy-mm-dd hh24:mi:ss'),
to_char
(t.start_date,
'yyyy-mm-dd hh24:mi:ss'
), s.last_call_et
, s.blocking_session
, s.status
,( select q.sql_text
from v$sql q
where q.last_active_time = t.start_date
and rownum <=
1) as sql_text
from v$session s,
v$transaction t
where s.saddr = t.ses_addr;
select distinct aa.session_id sid,
'alter system kill session '
''|| aa.session_id ||
','||
vv.serial# ||
''''
||';'
, aa.session_id sid,
owner,
name,
aa.type,
mode_held held,
mode_requested request
from dba_ddl_locks aa, v$session vv
where aa.name =
'***_pub_insert'
and aa.session_id = vv.sid;
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