A concurrency control mechanism of extended delamination locking based on2PL is presented,which can support the requirement of engineering cooperation design transaction and improve the concurrency degree of transaction.
该文结合工程数据库的层次性,提出了基于2PL的扩充分层封锁机制,能够较好地支持工程合作设计事务的进行和提高事务的并发度。