Completely delete OEM from the Database

Question

I would like to know how to completely drop and re-create the OEM from an Oracle Database. The emctl console application updates the OEM configuration files but does not allow you to delete the oem tables etc... completely from the database.

Answer 1

This command doesn't work, I get the following error (-deconfig is not an option!):
Incorrect usage:
oracle.sysman.emcp.EMConfigAssistant [options] [list of parameters]
Options:
     -a :configure for an ASM database
     -b :configure for automatic backup
     -c :configure a cluster database
     -e <node> :remove a node from the cluster
     -f <file> :specify the file name that contains parameter values
     -h :help
     -m :configure EM for a central agent
     -n <node> :add a new node to the cluster
     -r :skip creation of repository schema
     -s :silent mode (no user prompts
     -x <db> :deletion of a SID or DB
     -RMI_PORT <port> :specify the RMI port for DB Control
     -JMS_PORT <port> :specify the JMS port for DB Control
     -AGENT_PORT <port> :specify the EM agent port
     -DBCONSOLE_HTTP_PORT <port> :specify the DB Control HTTP port
The script will prompt for any required data that is not specified in a configuration file. The script always prompts for all required passwords. If you use a configuration file, the file may contain any of the following specifications, as shown, with the specified values correctly filled in:
Parameters for single instance databases:
     HOST=<Database hostname>
     SID=<Database SID>
     PORT=<Listener port number>
     ORACLE_HOME=<Database ORACLE_HOME>
     LISTENER=<Listener name>
     HOST_USER=<Host user name for automatic backup>
     HOST_USER_PWD=<Host user password for automatic backup>
     BACKUP_HOUR=<Automatic backup hour in number>
     BACKUP_MINUTE=<Automatic backup minute in number>
     ARCHIVE_LOG=<Archive log>
     EMAIL_ADDRESS=<Email address for automatic notification>
     MAIL_SERVER_NAME=<Email gateway for automatic notification>
     ASM_OH=<ASM ORACLE_HOME>
     ASM_SID=<ASM SID>
     ASM_PORT=<ASM port>
     ASM_USER_ROLE=<ASM user role>
     ASM_USER_NAME=<ASM user name>
     ASM_USER_PWD=<ASM user password>
     EM_HOME=<Enterprise Manager ORACLE_HOME>
     DBSNMP_PWD=<Password for dbsnmp>
     SYSMAN_PWD=<Password for sysman>
     SYS_PWD=<Password for sys>
Parameters for cluster databses:
     HOST=<Database Instance hostname>
     PORT=<Listener port number>
     LISTENER=<Listener name>
     ORACLE_HOME=<Database ORACLE_HOME>
     CLUSTER_NAME=<Cluster name>
     DB_NAME=<Database name>
     SERVICE_NAME=<Service name>
     HOST_USER=<Host user name for automatic backup>
     HOST_USER_PWD=<Host user password for automatic backup>
     BACKUP_HOUR=<Automatic backup hour in number>
     BACKUP_MINUTE=<Automatic backup minute in number>
     ARCHIVE_LOG=<Archive log>
     EMAIL_ADDRESS=<Email address for automatic notification>
     MAIL_SERVER_NAME=<Email gateway for automatic notification>
     ASM_OH=<ASM ORACLE_HOME>
     ASM_PORT=<ASM port>
     ASM_USER_ROLE=<ASM user role>
     ASM_USER_NAME=<ASM user name>
     ASM_USER_PWD=<ASM user password>
     EM_HOME=<Enterprise Manager ORACLE_HOME>
     DBSNMP_PWD=<Password for dbsnmp>
     SYSMAN_PWD=<Password for sysman>
     SYS_PWD=<Password for sys>