DATABASE Backup and RECOVERY: Understanding Methods, Recovery Planning, Replication, Data Protection, Disaster

What happens when your database backup succeeds-but the business still cannot recover?A successful backup job is not the same as a recoverable database. The real challenge is knowing what to protect, how much data the organization can afford to lose, how quickly service must return, and whether the recovery process has actually been tested.Database Backup and Recovery presents a practical, vendor-neutral approach to building database resilience from the ground up. Rather than treating backup as a single task, this book shows how backup, restoration, logging, replication, high availability, disaster recovery, security, monitoring, and recovery testing fit together as one operational capability.Inside, you'll learn how to: - Translate business requirements into realistic RPO and RTO objectives - Choose between full, differential, incremental, snapshot, logical, and physical backup approaches - Design retention, storage, off-site, immutable, and isolated copies across failure domains - Understand transaction logs, WAL, binary logs, redo, and point-in-time recovery - Plan and execute database restoration and recovery in a controlled sequence - Understand how replication and high availability complement-but do not replace-historical recovery - Build practical recovery runbooks and map critical dependencies - Prepare for site failures, regional outages, ransomware, corruption, accidental deletion, and other failure scenarios - Secure backup repositories, credentials, encryption keys, and recovery assets - Test recovery procedures, measure actual recovery time, validate recovery points, and monitor readinessThe book includes platform-specific examples and concepts for PostgreSQL, MySQL, Microsoft SQL Server, and Oracle Database, while keeping the underlying recovery principles vendor-neutral.You will also work through controlled exercises involving recovery objectives, backup schedules, failure scenarios, restore procedures, runbooks, failover, and recovery testing. The goal is not simply to create more copies of data-it is to build evidence that your organization can recover the right data, to the right point, on the right platform, within the required time.Whether you're developing your first database protection strategy or strengthening an existing environment, this book provides a structured framework for turning backup operations into measurable recovery capability.