The Not Structured Query Language (NoSQL) databases have become more relevant to applications developers as the need for scalable and flexible data storage online has increased. Each NoSQL database system provides features that fit particular types of applications. Thus, developer must carefully select according application’s needs. Redis is a key-value fast access. On other hand, Apache HBase ...

Résumé. Les données des systèmes d’analyse en ligne (OLAP, On-Line Analytical Processing) sont traditionnellement gérées par des bases de données relationnelles. Malheureusement, il devient difficile de gérer des mégadonnées (de gros volumes de données, « Big Data »). Dans un tel contexte, comme alternative, les environnements « Not-Only SQL » (NoSQL) peuvent fournir un passage à l’échelle tout...

The column-oriented NoSQL (Not Only SQL) model provides for big data the most suitable model to the data warehouse and the structure of multidimensional data as the OLAP cube and allows it to be deployed in the cloud and a high scalability whilst delivering high performance. In the absence of a clear approach which allows the implementation of data warehouses using this model, we propose in thi...

The banking sector is one of the best examples who create Big Data with increasing transactions per second across the globe. Each bank is administered by the DBA (Database Administrator) as a technical in charge. DBA makes an arrangement in the branch to divert query from authorized user to the appropriate data repository. The SQL core Engine accepts input stream, processes and optimized to inc...

The Mining Software Repositories (MSR) field analyzes the rich data available in source code repositories (SCR) to uncover interesting and actionable information about software system evolution. Major obstacles in MSR are the heterogeneity of software projects and the amount of data that is processed. Model-driven software engineering (MDSE) can deal with heterogeneity by abstraction as its cor...

Both research and practice indicate that traditional universal DBMS architecture hardly satisfies new trends in data processing, particularly in the context of cloud computing and Big Data problems. New database architectures and their basic features will be described, particularly their horizontal scalability and concurrency model, which is mostly weaker than ACID transactions in relational SQ...

A new class of data storage systems, called NoSQL (Not Only SQL), have emerged to complement traditional database systems, with rejection of general ACID transactions as one common feature. Different platforms, and indeed different primitives within one NoSQL platform, can offer various consistency properties, from Eventual Consistency to single-entity ACID. For the platform provider, weaker co...