http://lattes.cnpq.br/9378258073324535; LEITE, Cicília Raquel Maia.
Résumé:
Processing of continuous data streams is emerging as new and expanding area of research and concerns the processing of information from sources that produce data in a fast rate and in a continuous way. For example, information from sensory devices can be
considered as a continuously expanding and unlimited sequence of data items without
any boundaries. Traditionally, such information required special monitoring applications
and equipment that process and react to continual inputs from several sources such as
in a weather monitoring station, patient monitoring equipment, etc. This work, presents
a syntax for the declaration of real-time queries, called Query Language for Application
Real-Time Databases (QL-ARTDB) or Query Language for Real-Time Databases (QL-
RTDB). Ahead of the developed syntax we implement a interface to process the QL-
RTDB. Such interface can be used in applications that they need to deal with temporal
restrictions. It was implemented through the DBMS IBM DB2 and programming language
Java. The DBMS that we use is IBM DB2, however, the same can be substituted by any
another one with the same characteristics. The syntax of the language allows that the
users de ne its queries using the SQL-99 added of the primitives in real-time that they
correspond to the imposed temporal restrictions to the data used for the same ones. The
advantage of this interface is to accept a commerce DBMS to process conventional data
as conventional data with time restrictions which is necessary to business that need to
work with both ways.