#transactions

FOR UPDATE: pessimistic row lock để chặn lost update, và cái giá deadlock khi không lock...

Got a Spring service? You write a @Transactional method. Inside it, you call another private or...

Building read-heavy APIs? Don't let your ORM do unnecessary work. By default, @Transactional implies...

Your domain event fires. Your notification service queries the DB for the entity that just got saved....

Distributed transactions in .NET Core allow operations across multiple databases or resource managers to be treated as a single atomic unit. This ensures data consistency by committing or rolling back all operations together.

Microservices solve scaling problems, but they introduce a massive data consistency nightmare. When...

"could not serialize access due to concurrent update" (SQLSTATE 40001) is not a bug — it's REPEATABLE READ or SERIALIZABLE doing its job. The official fix is to retry the whole transaction. Here's how, in a Supabase context.

Imagine a simple money transfer scenario. John sends money to his friend Sarah. The system...

agents fail mid-workflow all the time. the payment starts, the agent crashes, the money's in...

O que é ACID? Imagine um sistema de compra de ingressos, onde você precisa comprar um...

Master distributed transaction patterns for microservices — choreographed sagas, orchestrated sagas, 2PC, transactional outbox, and CDC.

Guarantees for data reliability