What is online backup and offline backup in Oracle?

Question

An online or hot backup is a backup performed while the database is online and available for read/write operations. Except for Oracle exports, you can only perform online backups when running in ARCHIVELOG mode. An offline or cold backup is a backup performed while the database is offline and unavailable to its users.

What is online and offline backup?

An online backup places your files onto the Spare Backup data servers. It is called an online backup because it uses the Internet to transfer your files. The offline backup is a cold backup. A cold backup is a backup performed while the database is off-line and unavailable to its users.

What is offline backup in Oracle?

An offline backup is one taken after the database is cleanly shut down. That is, it is not taken after an instance failure, SHUTDOWN ABORT, or other such shutdown. During the backup, the database is not available for normal operations.

What are the different types of backup in Oracle?

There are two types of backups: image copies and backup sets. An image copy is an exact duplicate of a datafile, control file, or archived log.The RMAN BACKUP ARCHIVELOG command.The RMAN BACKUP ... PLUS ARCHIVELOG command.An operating system utility.15 Backup and Recovery

What does offline backups mean?

A cold backup, also called an offline backup, is a database backup during which the database is offline and not accessible to update. This is the safest way to back up because it avoids the risk of copying data that may be in the process of being updated.

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