Oracle数据库锁表查询
时间：2021-07-01 10:21:17
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select value
from v$parameter
where name =
‘processes‘;
--
更改数据库连接数
alter system
set processes =
3000 scope =
spfile;
--
查看被锁的表
select b.owner,b.object_name,a.session_id,a.locked_mode
from v$locked_object a,dba_objects b
where b.object_id =
a.object_id;
--
查看当前活跃线程数
select s.status,s.*
from v$session s
where schemaname=
‘数据库用户名‘ and machine=
‘机器名‘;
select sid,serial#,username,program,machine,status
from v$session;
select count(*)
from v$session;
--查看sql执行记录
select *
from v$sqltext
where sql_text like
‘%sql语句%‘;
--
查询锁表语句
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$locked_object l
where l.session_id =
s.sid
and s.prev_sql_addr =
a.address
order by sid, s.serial#;
--
查看oracle正在执行的任务
select a.program,a.osuser, a.sql_exec_start, b.spid, c.sql_text,c.SQL_ID, c.FIRST_LOAD_TIME, c.last_load_time, c.last_active_time
from v$session a, v$process b, v$sqlarea c
where a.paddr =
b.addr
and a.sql_hash_value =
c.hash_value
and a.username is not
null;
--
查出oracle当前的被锁对象
SELECT l.session_id sid,
s.serial#,
l.locked_mode 锁模式,
l.oracle_username 登录用户,
l.os_user_name 登录机器用户名,
s.machine 机器名,
s.terminal 终端用户名,
o.object_name 被锁对象名,
s.logon_time 登录数据库时间
FROM v$locked_object l, all_objects o, v$session s
WHERE l.object_id =
o.object_id
AND l.session_id =
s.sid
ORDER BY sid, s.serial#;
SELECT * FROM V$LOCKED_OBJECT l,V$SESSION S WHERE l.SESSION_ID=
S.SID;
--
杀掉进程 sid,serial#
alter system kill session ‘223,10747‘;
--
批量杀死进程
declare cursor mycur is
select b.sid,b.serial#
from v$locked_object a,v$session b
where a.session_id =
b.sid group by b.sid,b.serial#;
begin
for cur
in mycur
loop
execute immediate ( ‘alter system kill session ‘‘‘||cur.sid ||
‘,‘|| cur.SERIAL# ||
‘‘‘ ‘);
end loop;
end;
Oracle数据库锁表查询
标签：group file 数据库 tar ext mod roc ora pfile
