RT Conference Proceedings
SR 00
A1 Chevalier, Max
A1 El Malki, Mohammed
A1 Kopliku, Arlind
A1 Teste, Olivier
A1 Tournier, Ronan
T1 Implementing Multidimensional Data Warehouses into NoSQL
YR 2015
SP 172
OP 183
K1 NoSQL - OLAP - Column-oriented modeling - Document-oriented modeling - Multidimensional modeling - Data warehouse
AB Not only SQL (NoSQL) databases are becoming increasingly popular and have some interesting strengths such as scalability and flexibility. In this paper, we investigate on the use of NoSQL systems for implementing OLAP (On-Line Analytical Processing) systems. More precisely, we are interested in instantiating OLAP systems (from the conceptual level to the logical level) and instantiating an aggregation lattice (optimization). We define a set of rules to map star schemas into two NoSQL models: column-oriented and document-oriented. The experimental part is carried out using the reference benchmark TPC. Our experiments show that our rules can effectively instantiate such systems (star schema and lattice). We also analyze differences between the two NoSQL systems considered. In our experiments, HBase (column-oriented) happens to be faster than MongoDB (document-oriented) in terms of loading time.
T2 17th International Conference on Enterprise Information Systems (ICEIS 2015) held in conjunction with ENASE 2015 and GISTAM 2015
LK https://publications.ut-capitole.fr/id/eprint/29466/