oracle for update鎖表資源釋放之kill -9和alter system kill session 'sid,serial#';

通過for update鎖表，通過操作系統方式和oracle方式終止進程方式

--查詢需要終止進程的情況，包括操作系統進程

select proc.sPID,
sess.sid,
sess.serial#,
lo.oracle_username,
lo.os_user_name,
ao.object_name,
lo.locked_mode
from v$locked_object lo, dba_objects ao, v$session sess,v$process proc
where ao.object_id = lo.object_id
and lo.session_id = sess.sid
and sess.PADDR=proc.ADDR;

--通過操作系統方式終止進程

kill -9 spid

--通過oracle方式終止進程

alter system kill session 'sid,serial#';

 

 

--增加查詢鎖表sql字段，需sql進程是ACTIVE狀態才能查詢到

select sqlt.sql_text,
proc.sPID,
sess.sid,
sess.serial#,
lo.oracle_username,
lo.os_user_name,
ao.object_name,
lo.locked_mode
from v$locked_object lo,
dba_objects ao,
v$session sess,
v$process proc,
v$sqltext sqlt
where ao.object_id = lo.object_id
and lo.session_id = sess.sid
and sess.PADDR = proc.ADDR
and sqlt.address = sess.sql_address;

通過測試用for update鎖表，在操作系統kill -9殺掉要等40秒后才能再鎖，在數據庫用alter system kill session 'sid,serial#';殺掉，2秒后就可以再次鎖

 

正常情況都是推薦用alter system kill session 'sid,serial#';來殺進程，不建議用kill -9