In all the excitement about NoSQL databases, distributed databases, data warehouses, and GPU-accelerated databases these days, it’s easy to forget that traditional relational databases still store and serve the mission-critical information for many, if not most, line-of-business applications. Oracle Database, Microsoft SQL Server, MySQL/MariaDB, and PostgreSQL may trace their origins back to the 1980s, but they are all still under active development, and not just to fix bugs and tweak performance.
