I don't know how to log on with another user using the User Password

I don't know how to log on with another user using the User Password Sometimes we need to use a user to log on to the system, but do not know the user's password. The solution is to first use the System user to modify the user's password and log on, after processing, change the password. The following is a test: Microsoft Windows XP [version 5.1.2600] (c) Copyright 1985-2001 Microsoft Corp. c:/Documents and Settings/Hawk> sqlplus/nolog SQL * Plus: Release 10.1.0.2.0-production on Sunday August 13 20:45:30 2006 copyright (c) 1982,200 4, Oracle. all rights reserved. SQL> connect system/system @ ora10g is connected. /* View the user's dinya password */SQL> select password from dba_users where username = 'dinya '; PASSWORD------------------------------0F1F7F3040ACD46A <-------- The encrypted password SQL> connect dinya/test @ ora10g is connected. /* The real password is test. If you do not know that the password is test, only the encrypted password */SQL> connect system/system @ ora10g is connected. /* Log on to the system */SQL> alter user dinya identified by AAAA. The user has changed the password. SQL> connect dinya/AAAA @ ora10g is connected. SQL> select * from dual; D-X SQL> connect system/system @ ora10g connected. /* Change the password back to the original password */SQL> alter user dinya identified by values '0f1f7f3040acd46a'; the user has changed. SQL> connect dinya/test is connected. SQL> -- end --