Tag
concurrency-control
- Jun 20, 2026 Isolation Levels and the Anomalies They Were Supposed to Prevent Why the SQL standard isolation levels are defined by the anomalies they should exclude, why that definition is incomplete, and what Critic and ARIES work revealed about writes that are visible before they are durable. computing history
- Nov 10, 2023 Conflict Serializability and the Precedence Graph Test How read-write conflicts between concurrent transactions form a directed graph, why a cycle means no equivalent serial order exists, and where the test stops being useful. databases