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Backup and Restore
As with everything that contains valuable data, PostgreSQL databases should be backed up regularly. While the procedure is essentially simple, it is important to have a clear understanding of the underlying techniques and assumptions.
There are three fundamentally different approaches to backing up PostgreSQL data:
- SQL dump
- File system level backup
-
Continuous archiving Each has its own strengths and weaknesses; each is discussed in turn in the following sections.
- File System Level Backup
- Continuous Archiving and Point-in-Time Recovery (PITR)