摘要: 数据仓库通常以离线的方式进行刷新,这样就不能向用户提供连续的查询服务。文章提出了一种适合数据仑库联机维护的算法─STNL算法,它消除了2VNL、MVNL等联机维护算法需要对元组暂时锁定的缺点,并且更容易实现。
关键词:
数据仓库,
联机维护,
2VNL,
MVNL
Abstract: Data warehouse maintenance algorithms usually work off-line, making the warehouse unavailable to users. In this paper, we present an online warehouse update algorithm-STNL STNL eliminates the limitation of other online warehouse update algorithm that a latch has to be held on the tuple, when the tuple is modified by the maintenance transaction. And it is more easy to implement STNL than to others.
中图分类号:
赵玉源,梁阿磊,白英彩. 一种数据仓库联机维护算法[J]. , 2000, 26(08): 78-.
ZHAO Yuyuan, LIANG Alei, BAI Yingcai. An Online Maintenance Algorithm for Data Warehouse[J]. , 2000, 26(08): 78-.