为了解决由于事务冲突使事务执行顺序反转而引起的数据仓库系统与源数据库中数据不一致性的问题,提出了一种区别于已有技术的基于版本化控制技术的并发控制模型(CCS),以最终达到避免事务之间出现冲突并保持数据仓库新鲜度的目的。

Research on Avoiding Transactions Conflicting by Using Versioning Control TechnologyGU Yan(School of Information,Guangzhou University,Guangzhou 510006,China)To solve the problem of data inconsistency between data warehousing and resource database due to execution order reversion of update transactions,the paper proposed a new concurrency control scheme that was different from former technology and made use of versioning control technology to avoid transactions conflicting and maintain the freshness of data warehouses.data warehouses;OLAP transaction;update transaction;concurrency control scheme;versioning control