- 06 Nov, 2025
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- 2 Mins Read
Understanding pg_dump Backup in PostgreSQL — A Complete Guide
Introduction
In any production environment, database backup is critical.
For PostgreSQL users, the pg_dump utility is one of the most powerful and reliable tools for creating logical backups.
Whether you are practicing PostgreSQL online or managing a live database through psql postgres, understanding how backup pgdump works will help you protect your data and ensure quick recovery when needed.
What Is pg_dump?
pg_dump is a built-in PostgreSQL utility that allows you to export your database into a script or archive file.
It performs logical backups, meaning it extracts SQL commands or data from your running database — without interrupting active users.
Key Features:
-
Creates consistent backups even while the database is active
-
Works with custom formats (
.sql,.tar,.custom) -
Supports selective backup of tables and schemas
-
Easily restores data with
psqlorpg_restore
Basic pg_dump Commands
Let’s explore some practical examples of backup pgdump commands using psql postgres environments.
Backup a Single Database
pg_dump -U postgres -d mydb -f /backup/mydb.sql
This creates a plain SQL file backup of your database named mydb.
Backup in Custom Format
-
-F c→ Custom format (recommended for larger databases) -
-b→ Includes large objects (BLOBs) -
-v→ Verbose mode
Restore the Backup
Using psql:
Using pg_restore (for custom format):
Conclusion
Archive Mode in PostgreSQL is more than just a backup feature — it’s the foundation of a reliable recovery strategy. Whether you’re learning through a PostgreSQL Course, practicing via a PostgreSQL Learn Online module, or advancing your skills to Learn PostgreSQL DBA, mastering this configuration ensures your data remains safe, consistent, and recoverable at all times.
Continuous learning and hands-on implementation are key to becoming a confident PostgreSQL professional.
At Learnomate Technologies, we make sure you not only understand such cutting-edge features but also know how to implement them in real-world projects. Whether you’re a beginner looking to break into the database world or an experienced professional upgrading your skillset—we’ve got your back with the most practical, hands-on training in Oracle technologies.
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