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Oracle Expert Error ... [message #67899] Tue, 02 July 2002 04:11 Go to next message
Hitesh Shenoy
Messages: 11
Registered: January 2002
Junior Member
I have configured OEM 9.0.1 on my clients database. I am using Oracle Expert to view performance of my database. When I try to collect info for my Tuning Session I get the following error :

XP-21161: Database connection attempt has failed
ORA-28009: connection to sys should be as sysdba or sysoper

Cause: Expert was unable to establish the requested
database connection.

Action: Check the accompanying Oracle Server message for
a full description of the connection problem.

It is possible that the service specification
used in the connection attempt is not correct.
Expert accepts 3 types of service information:

o A database alias as defined in the

o A Net8 descriptor block

o A network port specification using:


But I have connected to my database in OEM with “sys as sysdba”. Also I have configured the Preferred Credentials in Preferences to connect “sys as sysdba”.

Please advise.

Hitesh Shenoy
Re: Oracle Expert Error ... [message #67900 is a reply to message #67899] Tue, 02 July 2002 05:06 Go to previous message
Mahesh Rajendran
Messages: 10697
Registered: March 2002
Location: oracleDocoVille
Senior Member
Account Moderator
o7_dictionary_accessibility=true in init<SID>.ora
(By default this is set to 'false' for Oracle Server 9i)and restart the database server.
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