Modeling and Querying Temporal Data by using XML Database

Abstract

Database management Systems support to model reality, temporal database has the capability to record and process time-varying aspect of the real world. Conventional database represents the state of an enterprise at a single moment of time and changes are viewed as modification to the state. Many applications need information about the past: such as Financial records, Medical information, Library information system, and etc. Temporal Database System is a system that manages time varying data and temporal database contains historical data as well as current data. XML database offers more benefits than traditional relational database in temporal information processing because XML is well suited to model temporal data and XQuery have many feature that facilitate the complex querying for temporal data. XML with XQuery is used to model temporal data to eliminate the inflexibility of the relational data model and the extensible of SQL. In this paper, Library System is implemented to manage temporal data and querying temporal query for library system.