ER modeling/ C6160 Database management systems (DBMS) C6160J Object-oriented databasesThe Entity-Relationship (ER) model allows a database designer to develop a high-level conceptual schema without having to consider low-level issues such as efficiency, the underlying database management system ...
To address the scalability problem we present an architecture that enables the same SciSPARQL queries to be executed on the RDF dataset whether it is stored in a relational DBMS or mapped over a specialized geographically distributed e-Science data store. In order to minimize access and ...
ER modelSemanticsAlgebraMain-memoryLogical modelCISC operatorsIn this paper we present the foundations for a semantically rich main-memory DBMS based on the entity-relationship data model. The DBMS is fully operational and performs all queries that are illustrat...