Institute for Informatics
Georg-August-Universität Göttingen

Databases and Information Systems

Uni Göttingen

Workshop Database-as-a-Service,
Münster, Germany, March 3, 2009. Technical Report, Institut f. Wirtschaftsinformatik, Univ. Münster, No. 122, pp. 13-25.

A Database-Based Service for Handling Logical Variable Bindings

Wolfgang May


The paper discusses the use of a database as a service that supports applications whose data flow is based on sets of tuples of variable bindings, as e.g., in logic-based frameworks like Datalog and similar rule-based approaches. The service also supports cooperative work of different services on the bindings, thus replacing the need for actual exchange of potentially large sets of data during workflows. The concrete usage scenario of the service is in a distributed environment for processing ECA (Event-Condition-Action) rules and processes over relational states.