When Did This Transaction Happen? PostgreSQL Snapshots, LSNs, Oracle SCNs, and More

When did a database change happen? This isn't just academic. Incremental replication must order committed changes and resume exactly without locking writers. Migration validation checks if source and target are the same state, even as both change. Audit and incident analysis reconstruct who changed data, when, and when others could see it.... Weiterlesen: When Did This Transaction Happen? PostgreSQL Snapshots, LSNs, Oracle …