ISSN:0975-9646 Databases and data warehouses have become a vital part of many organizations. So useful information and helpful knowledge have to be mined from transactions. In real life, media information has time attributes either implicitly or explicitly called as temporal data. This paper focuses on an encoding method for the temporal database that reduces the memory utilization during proce...

Current RDBMS technology provides little support for building temporal databases. The paper describes a methodology and a CASE tool that is to help practitioners develop correct and efficient relational data structures. The designer builds a temporal ERA schema that is validated by the tool, then converted into a temporal relational schema. This schema can be transformed into a pure relational ...

The interest in and user demand for temporal databases have only increased with time; unfortunately, DBMS vendors and standard groups have not moved aggressively to extend their systems with support for transaction-time or valid-time. This can be partially attributed to the expected major R&D costs to add temporal support to RDBMS by directly extending the database engine. The newly introduced ...

This paper describes how the technology of deductive constraint database systems and constraint query languages can be used to represent and reason with tem poral knowledge First we summarize our approach to manipulating constraints over reals within deductive database sys tems This approach is based on the compile time rewriting of clauses which are not admissible Then we show how the timestam...

Recent efforts in spatial and temporal data models and database systems attempt to achieve an appropriate kind of interaction between the two areas. This paper reviews the different types of spatio-temporal data models that have been proposed in the literature as well as new theories and concepts that have emerged. It provides an overview of previous achievements within the domain and criticall...