java is an object-oriented program that has abundant open-source libraries for application development and 3d model rendering. spatial database is the database that can efficiently store and manage geographic information data though various spatial data management techniques. this paper explores the rationale of coupling java with spatial database to develop an effective platform for future bui...

We present a new approach to temporal data modeling based on the very general notion of temporal object . Moreover, we propose the database embedding of temporal objects by means of the abstract data type ( ADT ) approach. We consider the expressiveness of different temporal database embeddings, and we discuss the combination of temporal and spatial objects into spatio-temporal objects in (rela...

In this paper we propose a visual interface for the specification of predicates to be used in queries on spatio-temporal databases. The approach is based on a visual specification method for temporally changing spatial situations. This extends existing concepts for visual spatial query languages, which are only capable of querying static spatial situations. We outline a preliminary user interfa...

Temporal logic is obtained by adding temporal connectives to a logic language. Explicit references to time are hidden inside the temporal connectives. Di erent variants of temporal logic use di erent sets of such connectives. In this chapter, we survey the fundamental varieties of temporal logic and describe their applications in information systems. Several features of temporal logic make it e...

Schema versioning provides a mechanism for handling change in the structure of database systems and has been investigated widely, both in the context of static and temporal databases. With the growing interest in spatial and spatio-temporal data as well as the mechanisms for holding such data, the spatial context within which data is formatted also becomes an issue. This paper presents a genera...

A parallel execution model for the update process of temporal databases is introduced in this paper, based on temporal parallelism and temporal independence. The parallel approach improves the through-put of massive and complex updates of a multi-version schema system. The notion of temporal agents and its eeect on parallelism is discussed, as well as diierent transaction modes. Several simulat...

This paper presents an interval-based positional logic and proves its completeness. The proposed logic combines positional operators, deened by time intervals, with modal operators used to express the subinterval relationship. Moreover, the logic can be easily extended either by including more predicates for absolute temporal references or by adding other operators for relative and periodical t...

Temporal databases can be queried either by query languages work ing directly on a timestamp representation or by languages using an implicit access to time via temporal connectives We study the dif ferences in expressive power between these two approaches First we consider temporal and rst order logic We show that future tem poral logic is strictly less powerful than past future temporal logic...

A list of technical reports, including some abstracts and copies of some full reports may be found at: Abstract One of the major problems of temporal databases is to develop eecient algorithms for operations that involves the time attributes. An operation that has received much attention in recent years is the temporal join which matches records from two temporal relations whose time intervals ...

After more than a decade of a virtual standstill, the adoption of temporal data management features has recently picked up speed, driven by customer demand and the inclusion of temporal expressions into SQL:2011. Most of the big commercial DBMS now include support for bitemporal data and operators. In this paper, we perform a thorough analysis of these commercial temporal DBMS: We investigate t...