Oracle – Dropping connected users in Oracle database

oracle

I want to drop some users in Oracle DB using sqlplus but I am getting error:

SQL> DROP USER test CASCADE;
DROP USER test CASCADE
*
ERROR at line 1:
ORA-01940: cannot drop a user that is currently connected

I followed the link in SO to find out the sessions – Dropping a connected user from an Oracle 10g database schema

But when I ran the command I am not getting any results:

SQL> select sid,serial# from v$session where username = 'test';

no rows selected

Please help me how to drop users in this case.

Best Solution

Users are all capitals in v$session (and data dictionary views). If you match with capitals you should find your session to kill.

SELECT s.sid, s.serial#, s.status, p.spid 
  FROM v$session s, v$process p 
 WHERE s.username = 'TEST' --<<<--
  AND p.addr(+) = s.paddr
 /

Pass actual SID and SERIAL# values for user TEST then drop user...:

ALTER SYSTEM KILL SESSION '<SID>, <SERIAL>'
/