This article was originally published on AI Study Room . For the full version with working code examples and related articles, visit the original post. Database Replication Patterns Database Replication Patterns Database Replication Patterns Database Replication Patterns Database Replication Patterns Database Replication Patterns Database Replication Patterns Database Replication Patterns Replication Fundamentals Database replication copies data from one server to another for redundancy, read scaling, and disaster recovery. Synchronous Replication The primary waits for replicas to acknowledge writes: \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\-- PostgreSQL synchronous replication synchronous_commit = on synchronous_standby_names = '2 (standby1, standby2, standby3)' SELECT application_name, state, sync_state, sync_priority FROM pg_stat_replication; Synchronous replication guarantees no data loss but increases latency.…