lock problem

[Ali TOYGAR]

Hi , I have a problem.         I wrote an sql  : in TERMINAL A                   select col1,col2                  from tableX                  where col1 = ...                  for update   I wrot same sql , in other terminal TERMINAL B                   select col1,col2                  from tableX                  where col1 = ...                  for update      Then , I immidiately power off Terminal A. In other words connection is closed without rollback or commit.   But ,  terminal B waits.. !!!! what is the problem ? TABLE ROW LOCK is not AUTOMATICALLY killed.   I used , KILL SESSION to kill session. But in my oppinion ORACLE must do it. Because connection is closed.   I want , oracle kill this type of lock. How can I set Oracle to kill this kind of LOCK problems ? please help me..