# On Transactional Concurrency Control

Morgan & Claypool / Springer (2019) Synthesis Lecture by Goetz Graefe (HP/Microsoft DB researcher). Reframes 2PL, OCC, MVCC, and snapshot isolation around a single coherent model with serializable-snapshot variants. The compact follow-on to [[concurrency-control-and-recovery-in-database-systems]] for readers who already know the 1987 baseline. On the [[eatonphil-bookclub]] speculative future list.

Related: [[concurrency-control-and-recovery-in-database-systems]].