A hot backup takes a snapshot of the entire physical structure of a database (all the datafiles,controlfiles,redo logs,and archive logs);if the database is not shut down,and any changes are made during the copy process,an inconsistent backup will result.

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A hot backup, also known as an online backup, allows the database to remain open and available for use while the backup is occurring. It captures the state of the database at a point in time, including all necessary files to ensure a consistent state can be restored. Changes made during the backup process are tracked and included to ensure consistency.

A Hot Backup Takes a Snapshot of the Entire Physical