本文实例讲述了Linux下Oracle删除用户和表空间的方法。分享给大家供大家参考，具体如下：
1.删除某个用户
conn /as sysdba
Connected.
sql> drop user userName cascade;
ORA-01940: cannot drop a user that is currently connected@H_301_15@
select sid,serial# from v$session where username='userName';
SID SERIAL#
---------- ----------
150 9019
sql> alter system kill session '150,9019';
System altered.
