As the rapid development of computer application, the data warehouse technology becomes one of IT field popular research directions. 由于计算机应用的飞速发展,数据仓库技术成为IT业界的热门研究方向之一。
Nowadays, GIS has made a rapid progress on technology and application of data collection and processing, database establishing, data output and so on, and its application scope has already been become very abroad. 目前,我国基础GIS在数据采集、处理、建库、输出等方面的技术及应用已取得巨大成果,其应用范围和领域已十分广泛。
With the rapid popular of data stream application systems, management of data streams is a huge challenge on database technology. 随着数据流应用系统的快速流行,流数据管理对数据库技术提出了巨大挑战。
With the rapid development and application, some enterprise had accumulated lots of electronic data with different form, these data are mainly stored by relational database 、 Excel files 、 XML files etc. So they are formed the information data resource of the enterprise. 随着计算机技术发展和应用的日益广泛,企业积累了大量以不同形式存储的电子数据,这些数据主要以关系型数据库、Excel文件和XML文件等格式存储,构成了企业的信息数据资源。
With the rapid development and application of the network communication and database technology, the data of enterprise is towards from centralized to distributed. 随着网络通信与数据库技术的快速发展与应用,企业的数据信息也从集中走向分布。