orakill

1.orakill命令怎么用？
通过在command命令行直接使用orakill命令便可得到简单但清晰的实用使用指导。
需要注意的是：“sid”指的是“instance name”，不要被名字误导！C:\>orakill

Usage:  orakill sid thread

  where sid    = the Oracle instance to target
        thread = the thread id of the thread to kill

  The thread id should be retrieved from the spid column of a query such as:

        select spid, osuser, s.program from
        v$process p, v$session s where p.addr=s.paddr

2.orakill命令何时用？
1）当手工使用“alter system kill session 'sid,serial#';”命令杀数据库中的session后，会话信息可能还会驻留在数据库中。使用这个orakill命令便可在操作系统一级可以彻底清除之；
2）从操作系统一级直接杀掉某个异常的会话。

3.orakill命令这样用。
sys@secooler> col sid for 9999
sys@secooler> col serial# for 9999
sys@secooler> col spid for 99999
sys@secooler> col OSUSER for a20
sys@secooler> col program for a30
sys@secooler> select s.sid, s.serial#, p.spid, s.osuser, s.program from v$process p, v$session s where p.addr=s.paddr order by s.sid;

  SID SERIAL# SPID    OSUSER               PROGRAM
----- ------- ------- -------------------- --------------------
  147       9 2300    BJSECDB\Housw        sqlplus.exe
  149       2 5904    SYSTEM               ORACLE.EXE (q001)
  151       2 3096    SYSTEM               ORACLE.EXE (q000)
  155       9 2884    SYSTEM               ORACLE.EXE (QMNC)
  158      17 5588    SYSTEM               ORACLE.EXE (J000)
  159       3 1088    BJSECDB\Housw        sqlplus.exe
  160       1 4776    SYSTEM               ORACLE.EXE (MMNL)
  161       1 4308    SYSTEM               ORACLE.EXE (MMON)
  162       1 3224    SYSTEM               ORACLE.EXE (CJQ0)
  163       1 5780    SYSTEM               ORACLE.EXE (RECO)
  164       1 2272    SYSTEM               ORACLE.EXE (SMON)
  165       1 2804    SYSTEM               ORACLE.EXE (CKPT)
  166       1 2696    SYSTEM               ORACLE.EXE (LGWR)
  167       1 4876    SYSTEM               ORACLE.EXE (DBW0)
  168       1 5668    SYSTEM               ORACLE.EXE (MMAN)
  169       1 4644    SYSTEM               ORACLE.EXE (PSP0)
  170       1 1112    SYSTEM               ORACLE.EXE (PMON)
17 rows selected.

数据库的实例名字是“secooler”，我们打算杀死SPID是“2300”这个session，那么方法如下：
sys@secooler> host orakill secooler 2300

Kill of thread id 2300 in instance secooler successfully signalled.

You can also use the Windows taskkill utility to remove an Oracle Windows process:

 

c:>tasklist

oracle.exe 9311 Console 0 5,072 K
 

c:>taskkill /pid 9311

SUCCESS: The process with PID 9311 has been terminated.