Oracle 锁相关SQL

-- 查询Oracle正在执行的sql语句及执行该语句的用户
select s.sid AS session_id,
s.serial# AS serial_number,
       sql_text, -- 正在执行的sql
       s.username AS login_user, -- 登录oracle用户名
       s.machine, -- 计算机名
       spid, -- 操作系统id
       paddr
  from  v$session s, v$process p, v$sqlarea a
 where p.addr = s.paddr
   and s.sql_hash_value = a.hash_value;


-- 查看正在执行sql的发起者的发放程序
select osuser, -- 电脑登录身份  
       program, -- 发起请求的程序  
       username, -- 登录系统的用户名  
       schemaname,
       b.cpu_time, -- 花费cpu的时间  
       status,
       b.sql_text -- 执行的sql  
  from v$session a
  left join v$sql b
    on a.sql_address = b.address
   and a.sql_hash_value = b.hash_value
 order by b.cpu_time desc; 



-- 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#;


-- kill掉当前的锁对象
-- alter system kill session 'sid， s.serial#';
alter system kill session '877， 27944';


-- 查询当前正在执行的事务
select s.sid,
       s.serial#,
       s.event,
       a.sql_text,
       a.sql_fulltext,
       s.username,
       s.status,
       s.machine,
       s.terminal,
       s.program,
       a.executions,
       s.sql_id,
       p.spid,
       a.direct_writes
  from (select * from v$session where status = 'active') s
  left join v$sqlarea a
    on s.sql_id = a.sql_id
 inner join v$process p
    on s.paddr = p.addr;


-- 查看Oracle 数据库中的长事务
set linesize 200  
set pagesize 5000  
col transaction_duration format a45 
  
with transaction_details as
 (select inst_id, ses_addr, sysdate - start_date as diff from gv$transaction)
select s.username,
       to_char(trunc(t.diff)) || ' days, ' ||
       to_char(trunc(mod(t.diff * 24, 24))) || ' hours, ' ||
       to_char(trunc(mod(t.diff * 24 * 60, 24))) || ' minutes, ' ||
       to_char(trunc(mod(t.diff * 24 * 60 * 60, 60))) || ' seconds' as transaction_duration,
       s.program,
       s.terminal,
       s.status,
       s.sid,
       s.serial#
  from gv$session s, transaction_details t
 where s.inst_id = t.inst_id
   and s.saddr = t.ses_addr
 order by t.diff desc
/


-- 查询长事务SQL
with ltr as
 (select to_char(sysdate, 'YYYYMMDDHH24MISS') TM,
         s.sid,
         s.sql_id,
         s.sql_child_number,
         s.prev_sql_id,
         xid,
         to_char(t.start_date, 'YYYYMMDDHH24MISS') start_time,
         e.TYPE,
         e.block,
         e.ctime,
         decode(e.CTIME, 0, (sysdate - t.start_date) * 3600 * 24, e.ctime) el_second
  --  q.sql_text 
    from v$transaction t, v$session s, v$transaction_enqueue e
   where t.start_date <= sysdate - interval '100' second /*查询开始多少秒的事务*/
     and t.addr = s.taddr
        --and s.sql_child_number = q.CHILD_NUMBER(+) 
        --and s.sql_id = q.sql_id(+) and s.prev_sql_id = q.sql_id(+) 
     and t.addr = e.addr(+))
select ltr.*,
       (select q1.sql_text
          from v$sql q1
         where ltr.prev_sql_id = q1.sql_id(+)
           and rownum = 1) prev_sql_text,
       (select q1.sql_text
          from v$sql q1
         where ltr.sql_id = q1.sql_id(+)
           and ltr.sql_child_number = q1.CHILD_NUMBER(+)) sql_text
  from ltr ltr;