OSTM: A Spatiotemporal Extension to Oracle

Most researches in spatiotemporal database focus on data model and query processing, and few are towards the implementation of spatiotemporal database systems. In this paper, we present OSTM, a spatiotemporal database module which is extended on Oracle9i. As an Object-Relational DBMS, Oracle provides extensibility of data types and functions for complex applications. Based on our previous spatiotemporal data model, we develop spatiotemporal data types and functions for Oracle9i. After a brief introduction to the spatiotemporal data model, the implemental details of OSTM are discussed. OSTM supports traditional SQL language and thus provides a practical way for spatiotemporal data management.