Answer Posted / azhar ali khan

Cotrolfile is physical file that contains information regarding database physical structure and modes of database.
It is in binary format.
It has two sections.1.Non-reusable section
2.Reusable Section
Controlfile generally contains,
-Database name
-Timestamp of database creation
-System Change number(SCN)
-Logs History
-Names and path of datafiles
-Tablespace offline status
-Checkpoint number
One section of controlfiles reserved for RMAN backups,controlled by the parameter control_file_keep_record_time=7(days).

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