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【Oracle】ORA-00054 错误解决方法

转载 作者:leodinas_kong 时间:2017-11-23 13:44:40 0 删除 编辑
在进行数据库维护的过程中要删除一个中间表,遇到如下错误:
sys@DW>drop table dwods.member_DELTA;
drop table dwods.member_DELTA
                 *
ERROR at line 1:
ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired
发现表因为执行dml被锁住,下面给出错误的处理思路和过程,具体情况而异:
1 查看被数据库中被锁的用户信息:
sys@DW>select t2.username,t2.sid,t2.serial#,t2.logon_time 
  2  from v$locked_object t1,v$session t2 
  3  where t1.session_id=t2.sid order by t2.logon_time;
USERNAME                              SID    SERIAL# LOGON_TIME
------------------------------ ---------- ---------- -------------------
DWODS                                1520      42477 2011-11-17 18:00:40
DWODS                                1594       7385 2011-11-17 18:41:27
dwods 被锁住,因为事务是18:41分发起的,所以查看一下sid 为1594的信息,
2 查询出sql信息根据实际情况,进行操作
sys@DW>select sql_text from v$session a,v$sqltext_with_newlines b 
  2    where DECODE(a.sql_hash_value, 0, prev_hash_value, sql_hash_value)=b.hash_value 
  3    and a.sid=&sid order by piece; 
Enter value for sid: 1594
old   3:   and a.sid=&sid order by piece
new   3:   and a.sid=1594 order by piece
SQL_TEXT
----------------------------------------------------------------
insert /*+ append +*/ into DWODS.MEMBER_delta (ACTION,
ADDRESS,
........

32 rows selected.
正是发起的那个语句,查看用户的信息进行确认
sys@DW>@user_info 
Enter value for sid: 1594
old  12: where a.sid = &sid
new  12: where a.sid = 1594
USERNAME  SID   SERIAL# OS Process   Logon time         OSUSER  PROGRAM                 STATUS
--------- ----- ------- -----------------------------  -------- ----------------------- -----------
DWODS     1594   7385    3309      17/11/2011 18:41:27  etl     sqlplus@dw1 (TNS V1-V3)  ACTIVE
1 row selected.
3 选择kill 掉进程 
这里知道此session 可以杀掉,所以杀掉此session
sys@DW>alter system  kill session '1594,7385'; 
System altered.
4 进行确认: 
在数据库确认
sys@DW>@user_info
Enter value for sid: 1594
old  12: where a.sid = &sid
new  12: where a.sid = 1594
no rows selected
sys@DW>select t2.username,t2.sid,t2.serial#,t2.logon_time 
  2  from v$locked_object t1,v$session t2 
  3  where t1.session_id=t2.sid order by t2.logon_time;
USERNAME            SID SERIAL# LOGON_TIME
--------------- ------- ------- -------------------
DWODS              1520   42477 2011-11-17 18:00:40
DWODS              1520   42477 2011-11-17 18:00:40
2 rows selected.
在os层确认,进程已经被杀
oracle@dw1:/home/oracle>ps -ef | grep 3309
oracle   22565 18543  0 18:59 pts/5    00:00:00 grep 3309
再次执行删除表的操作:
sys@DW>drop table dwods.member_DELTA;
Table dropped.
------附上:
user_info。sql 脚本的内容:
select
        a.username,
        a.sid,
        a.serial#,
        b.spid "OS Process",
        to_char(a.logon_time,'DD/MM/YYYY hh24:mi:ss') "Logon time",
        a.osuser,
        a.program,
        a.status
from v$session a, v$process b
where a.sid = &sid
and a.paddr = b.addr
/
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