We define formal notions of temporal domain and temporal database, and use them to
survey a wide spectrum of temporal query languages. We distinguish between an abstract …

Investigates temporal changes of topological relationships and thereby integrates two
important research areas: first, 2D topological relationships that have been investigated …

Although “now” is expressed in SQL and CURRENT_TIMESTAMP within queries, this value
cannot be stored in the database. How ever, this notion of an ever-increasing current-time …

This chapter introduces a new approach to temporal extensions of SQL. In contrast with most
of the current proposals we use single time points as references to time, while still achieving …

A wide range of database applications manage time-varying data. Many temporal query
languages have been proposed, each one the result of many carefully made yet subtly …

Integrating spatio-temporal data as abstract data types into already existing data models is a
promising approach to creating spatio-temporal query languages. In this context, an …

Non-temporal data models and their implementations as database management systems
(DBMS) capture a single state of the real world, usually the current one. They support …

Temporal functional dependencies (TFD) are defined for temporal databases that include
object identity. It is argued that object identity can overcome certain semantic diffuculties with …

The interest in mobility data analysis has grown dramatically with the wide availability of
devices that track the position of moving objects. Mobility analysis can be applied, for …

We establish a correspondence between temporal logic and a subset of ATSQL, a temporal
extension of SQL-92. In addition, we provide an effective translation from temporal logic to …