Can you explain the difference between hot backup and cold backup in Oracle database?

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Answered by suresh

Oracle DBA Interview Question: Difference between Hot Backup and Cold Backup

Can you explain the difference between hot backup and cold backup in Oracle database?

Hot backup and cold backup are two methods used for backing up an Oracle database. Here is the difference between the two:

  • Hot Backup: A hot backup is taken while the database is still running and operational. It involves using Oracle's online backup capability to create a snapshot of the database without shutting it down. This ensures that the backup is consistent and up-to-date with the changes made to the database during the backup process.
  • Cold Backup: A cold backup is taken when the database is shut down and not in use. This type of backup involves copying all the necessary database files while the database is offline. While a cold backup requires the database to be inaccessible during the backup process, it can be simpler and more straightforward compared to hot backups.

Both hot and cold backups have their advantages and disadvantages, and the choice between the two depends on factors such as the availability requirements, recovery time objectives, and the size of the database.

Answer for Question: Can you explain the difference between hot backup and cold backup in Oracle database?