利用TSR技术在DBASE Ⅲ中实现数据恢复的功能

The Implementation of Recovery System in DBASE Ⅲ by TSR Technique

摘要: 数据恢复是数据库管理系统中解决数据库安全问题必不可少的一部分,在某种故障使数据库当前的状态不再正确时,系统可以利用运行日志把数据库恢复到以前的某个正确状态。目前在微机上流行的DBASE III 不具备数据恢复这一功能,本文的工作正是为了弥补这个缺陷,为用户提供更安全、更可靠的DBASE III,该功能是采用TSR(Terminate and Stay-Resident)技术实现的。

Abstract: Recovery system is an important part of DBMS for solving the problem of databasesecurity.It recovers the database to a correct state after some failure occurs in a database.The purpo-se of this paper is to design a recovery system for DBASE Ⅲ in order to improve its security andreliability This recovery system is implemented by TSR (Terminate and Stay-Resident) technique