Oracle DBA ++

Please note that scan and scan_listener can be stopped/started by oracle (rdbms software installation owner) or grid…

Execute below commands by  oracle or rdbms software installation owner . Please note that here, mydb is the DB_UNIQUE…

Disable HAS is required if you don't require to start the HAS services when servers starts-up. Later you can start …

#Execute below query check unusable indexes in the database. SQL> select owner,index_name,status from dba_indexes …

Invisible Indexes are ignored by Oracle Optimizer unless we explicitly set " optimizer_use_invisible_indexes = t…

#  Open the windows command prompt by "run as administrator" and e xecute below command to create an Oracle…