【Oracle】ORA-00054 錯誤解決方法

dbasdk發表於2017-11-30
在進行資料庫維護的過程中要刪除一箇中間表,遇到如下錯誤:
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
發現表因為執行dml被鎖住,下面給出錯誤的處理思路和過程,具體情況而異:
1 檢視被資料庫中被鎖的使用者資訊:
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 被鎖住,因為事務是18:41分發起的,所以檢視一下sid 為1594的資訊,
2 查詢出sql資訊根據實際情況,進行操作
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.
正是發起的那個語句,檢視使用者的資訊進行確認
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 選擇kill 掉程式 
這裡知道此session 可以殺掉,所以殺掉此session
sys@DW>alter system  kill session '1594,7385'; 
System altered.
4 進行確認: 
在資料庫確認
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層確認,程式已經被殺
oracle@dw1:/home/oracle>ps -ef | grep 3309
oracle   22565 18543  0 18:59 pts/5    00:00:00 grep 3309
再次執行刪除表的操作:
sys@DW>drop table dwods.member_DELTA;
Table dropped.
------附上:
user_info。sql 指令碼的內容:
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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