What is partial differential backup in SQL Server?

Question

A differential partial backup is a type of partial backup. The partial backup feature was added in SQL Server 2005, and is designed for databases where the tables are broken up into filegroups, and some of the filegroups are read-only (typically found in data warehouse environments).

What is partial backup in SQL Server?

A partial backup resembles a full database backup, but a partial backup does not contain all the filegroups. Instead, for a read-write database, a partial backup contains the data in the primary filegroup, every read-write filegroup, and, optionally, one or more read-only files.

What is partial backup in database?

A partial backup is any operating system backup short of a full backup, taken while the database is open or shut down. The following are all examples of partial database backups: a backup of all datafiles for an individual tablespace.

What is the difference between full backup and differential backup in SQL Server?

A differential backup is based on the most recent, previous full data backup. A differential backup captures only the data that has changed since that full backup. The full backup upon which a differential backup is based is known as the base of the differential.

What is differential data backup?

A differential backup backs up only the files that changed since the last full back. For example, suppose you do a full backup on Sunday. On Monday you back up only the files that changed since Sunday, on Tuesday you back up only the files that changed since Sunday, and so on until the next full backup.

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