emca -repos drop
1. Remove the repository objects from the database with the following commands: Stop the DB Control web site and logon to SQLPLUS as user SYS or SYSTEM, and drop the sysman account and mangement objects: SHUTDOWN IMMEDIATE; STARTUP RESTRICT; EXEC sysman.emd_maintenance.remove_em_dbms_jobs; EXEC sysman.setEMUserContext('',5); REVOKE dba FROM sysman; DECLARE CURSOR c1 IS SELECT owner, synonym_name name FROM dba_synonyms WHERE table_owner = 'SYSMAN' ; BEGIN FOR r1 IN c1 LOOP IF r1.owner = 'PUBLIC' THEN EXECUTE IMMEDIATE 'DROP PUBLIC SYNONYM '||r1.name; ELSE EXECUTE IMMEDIATE 'DROP SYNONYM '||r1.owner||'.'||r1.name; END IF; END LOOP; END; DROP USER mgmt_view CASCADE; DROP ROLE mgmt_user; DROP USER sysman CASCADE; ALTER SYSTEM DISABLE RESTRICTED SESSION; Note that the section from "DECLARE" to "END;" is PL/SQL and, while it can be copied and pasted into a SQL*Plus session, it will need to be terminat ed with a slash (/) on its own line before executing with a carriage return. You can see if sysman exists in dba_users to verify the effectiveness of the proced ure (select * from dba_users;). 2. Remove the existing DB Control web site configuration in the OS file system by running the command: emca -x <sid> (where you supply the SID name, i.e. emca -x orcl) This command remove the following directories from the database Oracle Home: O_H/<host>_<sid> O_H/oc4j/j2ee/OC4J_DBConsole_<host>_<SID> If they are not removed in the emca -x <sid> process, delete them manually. 3. Recreate both the repository objects and the DB control web site with the following command: emca This command opens up an interview process in which you will pass the information required to both recreate the rep ository objects and the web site configuration. Note: Port number refers to tnslistener port The value for sid and service name are normally the same You can leave the email configuration entries blank, since they can be added later You will need to remember the passwords for sys and dbsnmp from the database, so reset them in SQL*Plus if you have forgotten them. At the end of the emca command, the DB Control web site should be started and you should be able to log in through a browser.