Cannot loginto OEM as SYSDBA

Question

can not log into OEM as user sys, Connect as SYSDBA. Got error message: invalid user name or password. But can log into OEM as user sys Connect as Normal.
Same case for TOAD.
Any help?

Answer 1

what are the outputs of these statements
SQL>show parameter password
SQL>select * from v$pwfile_users;
Do you have the pasword file created by
orapwd file=filename password=password entries=max_users
1. Create the password file. This is done by executing the following command:
$ orapwd file=filename  password=password entries=max_usersThe filename is the name of the file that will hold the password information. The file location will default to the current directory unless the full path is specified. The contents are encrypted and are unreadable. The password required is the one for the SYS user of the database.
The max_users is the number of database users that can be granted SYSDBA or SYSOPER. This parameter should be set to a higher value than the number of anticipated users to prevent having to delete and recreate the password file.
2. Edit the init.ora parameter remote_login_passwordfile. This parameter must be set to either SHARED or EXCLUSIVE. When set to SHARED, the password file can be used by multiple databases, yet only the SYS user is recognized. When set to EXCLUSIVE, the file can be used by only one database, yet multiple users can exist in the file. The parameter setting can be confirmed by:
SQL> show parameter password
NAME                                 TYPE        VALUE
remote_login_passwordfile            string      EXCLUSIVE3. Grant SYSDBA or SYSOPER to users. When SYSDBA or SYSOPER privileges are granted to a user, that user's name and privilege information are added to the password file.
SQL> grant sysdba to scott;
Grant succeeded.4. Confirm that the user is listed in the password file.
SQL> select * from v$pwfile_users;
USERNAME                       SYSDBA SYSOPER
SYS                            TRUE   TRUE
SCOTT                          TRUE   FALSENow the user SCOTT can connect as SYSDBA. Administrative users can be connected and authenticated to a local or remote database by using the SQL*Plus connect command. They must connect using their username and password, and with the AS SYSDBA or AS SYSOPER clause:
SQL> connect scott/tiger as sysdba;
Connected.The DBA utilizes the orapwd utility to grant SYSDBA and SYSOPER privileges to other database users. The SYS password should never be shared and should be highly classified.