The DBGraph storage model, designed for main memory DBMS, ensures both data storage compactness and efficient processing for all database operations. By representing the entire da...
We present the SQL Performance Analyzer, a novel approach in Oracle Database 11g to testing database changes, such as upgrades, parameter changes, schema changes, and gathering op...
System developments and research on parallel query processing have concentrated either on "Shared Everything" or "Shared Nothing" architectures so far. While t...
Abstract. In the context of XML data management systems, the estimation of query cardinality is becoming more and more important: the information provided by a query result estimat...
: Active Database Systems (ADBSs) provides a good infrastructure to define and execute active rules. Nevertheless, this infrastructure offered by ADBSs does not completely satisfy ...
Sidney Viana, Jorge Rady de Almeida Jr., Judith Pa...