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• ORA-15001: diskgroup "DATAC1" does not exist or is not mounted
  
• Standby redo logs not using by standby database even its created.

• RMAN-06136: Oracle error from auxiliary database: ORA-00600: internal error code, arguments: [krbi_init_fra_metadata_not_backup_ctl].

• Oracle 23c new features for DBAs
• ORA-19809:limit exceeded for recovery files | while recovering database to another server
• ORA-02085: Database Link LINK_NAME Connects To TARGET_DB
• create clone database from standby database using Duplicate command
  
• How to find weblogic password in OEM
• Finding OEM urls including weblogic console url.
• How to apply OJVM patch without down time of database in RAC
• Active Datagaurd in 11gr2 
• Fast mirror resync in oracle (11g new feature)
• Oracle 12c new feature Multitenant Architecture 
• Oracle database 12c pre installation steps in linux
• Views to find database version
• User creation Tips in oracle                                                    
• Steps to creating database manually 
• Steps to configure physical standy database 11gr2 (backup based) 
• Materialized Views
• 11gr2 cloning with RMAN DUPLICATE command, backup based
• 11gr2 cold cloning in RHEL5
• Active cloning in 11gr2
• Understanding oracle dataguard 11gr2
• Central and Local inventories for Oracle 
• Transportable tablespace example
• switching undo tablespace