Data warehouse store and manage the product data . ett utility program extracts , transfers and transports the product data from ccocs into ccdwas Ett实用程序实现生产工艺数据从在线控制系统向离线数据仓库中转移,并在数据转移过程中进行必要的数据结构转换。
With these connections , and facilities for converting perl data structures to xml , perl presents an excellent platform for creating xml interfaces for existing systems 利用这些连接和将perl数据结构转换成xml的设施, perl成为一个为现有系统创建xml接口的出色平台。
Therefore , each type of report would require its own report - specific intermediate data structure for holding the results , a visitor for populating the intermediate data structure , and then post - processing code for turning the intermediate data structure into the final report 因此,每一种报告类型都需要有自己的、特定于报告的中间数据结构来存放结果,还需要一个用来填充中间数据结构的访问者,以及用来将中间数据结构转换成最终报告的后处理( post - processing )代码。