Have you ever performed a backup of a PostgreSQL database?

Yes, backing up a PostgreSQL database is usually done using the pg_dump utility.

Example of creating a backup:

pg_dump -U username -h hostname -F c -b -v -f backup_file.backup dbname

• -U — database username
• -h — server host
• -F c — backup format (custom)
• -b — include large objects
• -v — verbose output
• -f — file to save the backup

You can also use pg_basebackup to create a physical copy of the database.

For restoration, the pg_restore or psql commands are used depending on the backup format.

It is important to plan backups considering downtime and data volume.