论文部分内容阅读
传统的数据库系统一般都是运行在大型的计算机设备上,如主机系统和各种各样的服务器,随着计算设备的日益小型化,数据库的小型化也日益迫切。与大型计算机设备相比,这些小型的计算设备内存较少,硬盘也较少(甚至完全没有硬盘,如许多手持设备和智能家电),因此简单地将原来的大型数据库移植到小型设备上效果并不好,必须依据这些设备的特点专门设计数据库系统。此外,在设计这类数据库时还要考虑与企业中心的大型数据库可以方便有效地双向交换数据。目前,许多数据库厂商都把目光描向了这个领域并生产出了不同的产品,那么,这些产品在应用方面会有什么不同呢?本文较详细地回答了这问题。
Traditional database systems are generally run on large-scale computer equipment, such as the host system and a variety of servers, with the ever-smaller computing devices, the miniaturization of the database is also increasingly urgent. These small form factor computing devices have less memory and fewer hard drives than most mainframe devices, and even have no hard drives, such as many handhelds and smart appliances, so simply porting the original large database to smaller devices Bad, must be based on the characteristics of these devices specially designed database system. In addition, the design of such databases should also be considered and enterprise-wide large database can easily and effectively two-way exchange of data. At present, many database vendors are looking at this area and produce different products, then, these products will be applied in what is the difference? This article answers this question in more detail.