Application of File Mapping in the Real-time Historical Database of DCS
Zhe Sun · Computer Knowledge and Technology · 2013
Based on the file mapping mechanism,the file processing scheme in real-time historical database of Distributed Con trol Systems(DCS) is presented to query the historical data.The advantage of the file mapping mechanism in the large document processing[4] and reading and writing files frequently make the scheme improve the efficiency of the real-time historical database in DCS to process historical data files and shorten the time of querying the historical data.