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一、数据仓库产生背景 在信息化的今天,不管是哪一个企业,基本都会用到计算机数据库管理系统。数据库管理系统的应用好处在于它能实时处理生产系统中的数据,保存重要数据信息。一些大型公司还同时使用几个数据库存储大量数据,其中有实时的数据,也有大量以前的数据,还有一些系统外的有用数据。现在的数据发展趋势呈现出三大特征:业务综合化(由过去的单一业务转向多种业务)、管理扁平化(冗余的管理层次将逐步被消除)、决策科学化(决策将越来越依赖数据)。这就需要将大量的数据放在一起,进行提取、统计分析,为决策分析提供一定的依据。由此,数据仓库(Data Warehouse)作为一门新兴技术,在以不可比拟的速度进入到我们的生产、管理领域。
First, the background of the data warehouse In today’s information technology, no matter what a business, the basic will use a computer database management system. The advantage of database management system is that it can process the data in the production system in real time and save the important data information. Some large companies also use several databases at the same time to store large amounts of data, including real-time data, a large amount of previous data, and some useful data outside the system. Today’s data trends show three characteristics: business integration (from single business to diversified business in the past), flat management (redundant management level will be gradually eliminated), scientific decision-making (decision-making will be more and more Dependent on data). This requires a lot of data together, for extraction, statistical analysis, to provide some basis for decision-making analysis. As a result, the Data Warehouse (Data Warehouse) as an emerging technology, in an unparalleled speed into our production and management areas.