A spatio-temporal query language for continuous field model data

摘要

Recently, many extended database languages have been designed for handling spatial data. However, most research is limited to compute and manage discrete data. Little remarkable work has been done on the query processing for field data, especially on the management and querying temporal continuous field data using the databases technology. A method of representation and computation of continuous fields is introduced and a spatio-temporal query language for continuous field model data CFQL through object-relational database technology is proposed to manage and query continuous data. Examples of Field data management using CFQL are described.