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作为对联机事务处理(OLTP,On-Line Transaction Processing)进行补充的一种信息技术,联机分析处理(OLAP,On-Line Analytical Processing)正开始在现代管理过程中被人们大量使用。OLAP技术的概念最早由E.F.Codd在1993年提出。OLTP系统处理的对象是大量的事务,每个事务中有相对小容量细节数据,而OLAP系统则注重于对相对大容量的、主要是聚合的数据进行分析。OLAP是行政信息系统(Executive Information System)进一步演变的方向,它使用户脱离了表单,脱离了传统关系数据库的制约。 多维数据服务器(MDD)是OLAP技术的基础,是表单模型的一个自然数据库服务器扩展。MDD用于
As an information technology supplementing On-Line Transaction Processing (OLTP), on-line analytical processing (OLAP) is beginning to be widely used in modern management. The concept of OLAP technology was first proposed by E.F.Codd in 1993. OLTP systems handle a large number of transactions, with relatively small amount of detail data per transaction, while OLAP systems focus on analyzing relatively large-volume, mostly aggregated data. OLAP is the direction of further evolution of the Executive Information System, which leaves users out of the form and out of the constraints of traditional relational databases. Multidimensional Data Server (MDD) is the foundation of OLAP technology and is a natural database server extension of the form model. MDD is used