oracle鎖表檢視被鎖的表和解鎖

--

以下幾個為相關表
select
*from
v$lock;
select
*from
v$sqlarea;
select
*from
v$session;
select
*from
v$process ;
select
*from
v$locked_object;
select
*from
all_objects;
select
*from
v$session_wait;
--檢視被鎖的表 
select b.owner,b.object_name,a.session_id,a.locked_mode from v$locked_object a,dba_objects b where b.object_id
= a.object_id;--
檢視那個使用者那個程序照成死鎖
select b.username,b.sid,b.serial#,logon_time from v$locked_object a,v$session b where a.session_id = b.sid order
byb.logon_time;
--檢視連線的程序 
select sid, serial#, username, osuser from
v$session;
--3.查出鎖定表的sid, serial#,os_user_name, machine_name, terminal，鎖的type,mode
select
s.sid, s.serial#, s.username, s.schemaname, s.osuser, s.process, s.machine,
s.terminal, s.logon_time, l.type
from
v$session s, v$lock l
where s.sid =
l.sid
and s.username is
notnull
order
bysid;
這個語句將查詢到資料庫中所有的dml語句產生的鎖，還可以發現，
任何dml語句其實產生了兩個鎖，乙個是表鎖，乙個是行鎖。
--殺掉程序 sid,serial#
alter system kill session'
210,11562

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