ora-00054:resource busy and acquire with nowait specified解決方法

當某個數據庫用戶在數據庫中插入、更新、刪除一個表的數據，或者增加一個表的主鍵時或者表的索引時， 有時會出現ora-00054:resource busy and acquire with nowait specified這個問題，主要原因是事務正在執行或鎖表，具體解決方案如下：

1.查看鎖：

 

select t2.username,t2.sid,t2.serial#,t2.logon_time
from v$locked_object t1,v$session t2
where t1.session_id=t2.sid order by t2.logon_time;

 

2.查看造成鎖表的sql語句

 

select sql_text from v$session a,v$sqltext_with_newlines b
where DECODE(a.sql_hash_value, 0, prev_hash_value, sql_hash_value)=b.hash_value
and a.sid=&sid order by piece;

查看造成死鎖的語句(等同於一二步驟）：

 

select a.username ,a.sid, a.serial#, a.last_call_et "Seconds", b.event, c.sql_text

  from v$session a, v$session_wait b, v$sqlarea c

 where a.sid = b.sid

   and a.sql_hash_value = c.hash_value

   and b.wait_class not like 'Idle'

 

 

3.kill鎖

alter system kill session '339,13545';