Re-installed 10g Personal - Trying to Create Enterprise Manager

Question

Windows XP running 10g locally.
I can login with SQL*Plus.
Enterprise Manager failed to install. Running EMCA.bat, I get a message that Repository already exists.
This is the explanation of how to drop and create a new Repository:
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9.3.1 Dropping the Management Repository
To recreate the Management Repository, you first remove the Enterprise Manager schema from your Management Repository database. You accomplish this task using the -action drop argument to the RepManager script, which is described in the following procedure.
To remove the Management Repository from your database:
Locate the RepManager script in the following directory of the Oracle Application Server Home where you have installed and deployed the Management Service:
IAS_HOME/sysman/admin/emdrep/bin
At the command prompt, enter the following command:
$PROMPT> RepManager repository_host repository_port repository_SID
-sys_password password_for_sys_account -action drop
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Unfortunately, RepManager is not a batch or exe file and does not executve from the command prompt.
Next, I found an explanation about using SQL*Plus to drop Sysman.
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SQL> DROP USER SYSMAN CASCADE;
User dropped.
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Now back to EMCA -a (emca.bat with parameter -a).
This appeared to create the new Repository Parameter file but failed to complete.
The error message said I needed to set Block Size at 8K or larger and Job Queue at 10 or greater.
The LOG file said
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Create core schema..
Creating Types
No errors.
No errors.
No errors.
No errors.
No errors.
No errors.
No errors.
CREATE ROLE MGMT_USER
ERROR at line 1:
ORA-01921: role name 'MGMT_USER' conflicts with another user or role name
======
I don't think I have a problem with block size. I'm not sure how to check the Job Queue parameter. How do I drop the MGMT_USER user or role?

Answer 1

Hey once again ,
Please find following steps to remove EM repositry completly
Step 1: Drop AQ related objects in the SYSMAN schemaLogon SQLPLUS as user SYSMAN
SQL>exec DBMS_AQADM.DROP_QUEUE_TABLE(queue_table=>'MGMT_NOTIFY_QTABLE',force =>TRUE);
Step 2: Drop the DB Control
Repository ObjectsLogon SQLPLUS as user SYS or SYSTEM, and drop the sysman account and management objects:
SQL> SHUTDOWN IMMEDIATE;
SQL> STARTUP RESTRICT;
SQL> EXEC sysman.emd_maintenance.remove_em_dbms_jobs;
SQL> EXEC sysman.setEMUserContext('',5);
SQL>REVOKE dba FROM sysman;
SQL> DECLARECURSOR c1 ISSELECT owner, synonym_name nameFROM dba_synonymsWHERE table_owner
= 'SYSMAN';BEGINFOR r1 IN c1 LOOPIF r1.owner = 'PUBLIC' THENEXECUTE IMMEDIATE 'DROP PUBLIC SYNONYM '||r1.name;ELSEEXECUTE
IMMEDIATE 'DROP SYNONYM '||r1.owner||'.'||r1.name;END IF;END LOOP;END;
SQL> DROP USER mgmt_view CASCADE;
SQL> DROP ROLE mgmt_user;
SQL> DROP USER sysman CASCADE;
SQL> ALTER SYSTEM DISABLE RESTRICTED SESSION;
:-)