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Errors/Workarounds11g

Enterprise Manager DB Control/DB Console (OEM) is not working after Changing Hostname or IP Address

ERROR Enterprise Manager DB Control/DB Console (OEM) is not working after Changing Hostname or IP Address   SOLUTION Step 1. Set $ORACLE_HOSTNAME to the old hostname export ORACLE_HOSTNAME=old_name Step 2. De-configure …

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ORA-12720: operation requires database is in EXCLUSIVE mode

ERROR CREATE CONTROLFILE ................................. ................................................. CHARACTER SET AL32UTF8; ERROR at line 1: ORA-01503: CREATE CONTROLFILE failed ORA-12720: operation requires database is in EXCLUSIVE mode SOLUTION SQL> alter system set cluster_database=FALSE …

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