a control file contains information

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Among other things, a control file contains information such as:

• The database name

• The timestamp of database creation

• The names and locations of associated datafiles and redo log files

• Tablespace information

• Datafile offline ranges

• The log history

• Archived log information

• Backup set and backup piece information

• Backup datafile and redo log information

• Datafile copy information

• The current log sequence number

• Checkpoint information