A powerful, open source object-relational database system
Open source (BSD licensed), in-memory data structure store
A relational database management system developed by Microsoft
Set up, operate, and scale a relational database in the cloud.
MySQL and PostgreSQL compatible relational database with several times better performance
Fast and general engine for large-scale data processing
Provides a consistent approach to data access – relational, non-relational, map-reduce, and beyond