Database develop. life cycle - Backup and Recovery Strategies

Backup and recovery strategies are essential components of database management that protect data from loss due to hardware failure, software crashes, cyberattacks, or human errors. A backup is a duplicate copy of database data stored in a secure location, while recovery is the process of restoring data after failure.

There are different types of backups used in databases. A full backup captures the entire database, ensuring complete data protection. An incremental backup saves only the changes made since the last backup, reducing storage space. A differential backup stores changes since the last full backup, balancing speed and storage efficiency.

Recovery strategies depend on the type of failure. Point-in-time recovery allows restoring the database to a specific moment before data loss occurred. Disaster recovery plans ensure business continuity during major system failures by restoring data from remote locations.

Effective backup and recovery strategies minimize downtime, prevent permanent data loss, and ensure reliability of database systems.