ACID Transactions & Isolation Levels in Core Banking
📖 Bản tiếng Việt (Vietnamese Edition) Prerequisite: Read Part 1: Double-Entry Bookkeeping and Part 2: CIF, CASA & Lending Domain Modeling. ACID Transactions & Isolation Levels in Core Banking Answer-first: Enforcing ACID transactions in core banking guarantees that concurrent balance transfers execute without lost updates, dirty reads, or phantom balance anomalies. By implementing deterministic row-level locking (SELECT ... FOR UPDATE ordered by account ID) under PostgreSQL READ COMMITTED or REPEATABLE READ isolation, banking engines prevent concurrency deadlocks, eliminate double-spending race conditions, and sustain sub-40ms P99 database write latencies under peak transactional loads. ...