Full Backup
Creating database backups is essential in any server setup in case of a server crash or if a modification goes wrong and data is accidentally deleted.
pg_dumpall > backupfile
pg_dumpall backs up all databases, users and permissions. This is good for small databases that do not require a lot of space.
Incremental Backup
To make incremental backups you need to create a base backup
pg_dump db > backupfile
pg_dump only backs up one database at a time and does not save the users or permissions. Restoring from pg_dump requires that you have a base backup set in before you can restore otherwise you will get errors when you restore.
Restoring Database
pg_restore
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