通用数据库处理系统(DBPS)的编制

Establishment of General Data Base Process System

目前,数据库管理系统dBASE-Ⅲ以及新开发的dBASE-Ⅳ和FoxBASE在我国微型计算机上的使用十分广泛。就管理数据而言,使用它们很方便。然而,它们共同的弱点是,计算速度慢,且所提供的计算功能和函数相当少,即使最简单的矩阵运算,实现起来也较麻烦。因此,造成了大量的数据以dBASE方式收集起来,无法进行简单易行的数据处理及运算。另外。

In this paper, general data base process system (DBPS) is estblished, in which computer BASIC language and data base dBASE is combined. DBPS consists of a main module and five function modules, which can finish inquiry, transformation, statistics, replacement and printing for data base. Decomposition calculation of logic expression, relation expression and algebraic expression inputed from keyboard in the system with BASIC language is realized, and the problem of preservation of original records in statistics result is resolved by setting up virtual layer. So this system has the characteristics of strong function which is flexible and convenient in use.