Principles of Transaction-Based On-Line Reorganization
Principles of Transaction-Based On-Line Reorganization
复制标题
基于交易的在线重组原理
DOI：
--
复制
发表时间：
1992
期刊：
影响因子：
--
通讯作者：
Allyn Dimock
中科院分区：
文献类型：
--
作者：
B. Salzberg;Allyn Dimock
对于非常大的数据库，如银行和航空公司使用的数据库，出于成本考虑，可能不允许长时间关闭服务和离线重组。类似地，数据库的大小可能会妨碍在另一个磁盘集合上构建具有所需组织的另一个副本。这种数据库需要逐步在线重组。对记录的引用出现在数据库中的许多地方。如果用于记录的标识符由于重组而发生更改，则必须更改所有这些引用。本文主要研究在重用现有代码和对底层事务处理软件进行最小修改的同时，如何更新引用以使在线并行增量重组正确。
For very large databases such as those used by banks and airlines, cost considerations may forbid shutting down the service for a long period of time and reorganizing off-line. Similarly, the size of the database may preclude constructing another copy with the desired organization on another disk collection. Such databases need incremental on-line reorganization. References to records occur in many places in the database. If the identifier used for the record changes due to reorganization, all of these references must be changed. This paper concentrates on the problems of updating references to enable on-line parallel incremental reorganization to be correct while reusing existing code and making minimal changes to underlying transaction processing software.