Relational on demand data management for IT-services

Database systems are widely used in technical applications. However, it is difficult to decide which database management system fits best for a certain application. For many applications, different workload types often blend to mixed workloads that cause mixed requirements. The selection of an appropriate database management system is more critical for mixed workloads because classical domains with complementary requirements are combined, e.g., OLTP and OLAP. A definite decision for a database management system is not possible. Hybrid database system are developed to accept this challenge, i.e., these systems combine different storage approaches. However, a mutual optimization in hybrid systems is not available for mixed workloads. We develop a decision-support framework to provide application-performance estimation on a certain database management system on the one hand and to provide query optimization for hybrid database systems on the other hand. In this paper, we combine heuristics to a rule-based query optimization framework for hybrid relational database systems. That is, we aim on support for IT-services with volatile requirements. We evaluate the Aqua² framework on standard database benchmarks. and show an acceleration of query execution on hybrid database systems.