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What are the additional files used during the operation of the database,”parameter file, password file, backup files, archived redo log files, trace files
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Read morewhat are control files,”Each database has one unique control file that contains data about the database itself (that is, physical database structure information). Multiple copies may be maintained to protect against total loss. It can also contain metadata related to backups. The control file is critical to the database. Without the control file
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Read morewhat are data files,”Contain the user or application data of the database
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Read morewhat are Online redo log files,”Allow for instance recovery of the database. If the database server crashes and does not lose any data files
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Read morewhat is a parameter file
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Read morewhat is a password file,”Allows users using the SYSDBA, SYSOPER, SYSBACKUP, SYSDG, SYSKM
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Read morewhat are backup files
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Read morewhat are Archived redo log files,”Contain an ongoing history of the data changes (redo) that are generated by the instance. Using these files and a backup of the database, you can recover a lost data file. That is
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Read morewhat are trace files,”Each server and background process can write to an associated trace file. When an internal error is detected by a process, the process dumps information about the error to its trace file. Some of the information written to a trace file is intended for the database administrator
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