ACID Transactions & Isolation Levels in Core Banking
Prerequisite: In-depth understanding of relational database engines, transaction isolation anomalies, concurrency control mechanisms, and distributed locking. ACID Transactions & Isolation Levels in Core Banking Answer-first: Ensuring ACID database guarantees in high-throughput core banking ledgers requires leveraging PostgreSQL Serializable Snapshot Isolation, row-level pessimistic locking via explicit SELECT FOR UPDATE statements, distributed Redis Redlocks, and deterministic lock ordering protocols to completely eliminate balance race conditions, phantom reads, and deadlocks during concurrent inter-bank financial fund transfers. ...