Parallelism and recovery in database systems
Parallelism and recovery in database systems
复制标题
数据库系统中的并行性和恢复
DOI：
10.1145/320141.320146
复制
发表时间：
1980
期刊：
影响因子：
--
通讯作者：
Angelika Reiser
中科院分区：
文献类型：
--
作者：
R. Bayer;H. Heller;Angelika Reiser
本文介绍了一种提高数据库系统并行性的新方法。由于恢复的原因，数据库中的一个对象通常有两个值--新值和旧值。本文详细介绍和讨论了读者和作者可以同时对同一对象进行工作的一种方案。证明了根据该方案执行的交易具有正确的效果;即，保持一致性。几个变化的基本方案，这是合适的，取决于所需的并行度，进行了说明。
In this paper a new method to increase parallelism in database systems is described. Use is made of the fact that for recovery reasons, we often have two values for one object in the database—the new one and the old one. Introduced and discussed in detail is a certain scheme by which readers and writers may work simultaneously on the same object. It is proved that transactions executed according to this scheme have the correct effect; i.e., consistency is preserved. Several variations of the basic scheme which are suitable depending on the degree of parallelism required, are described.