The proliferation of NoSQL

In the past ten years, a profusion of data storage technologies have emerged as options for data-intensive applications. Loosely broken down into major categories by how the technology stores, manipulates, and returns data, their popularity is tracked and ranked. Redis, as a key-value store, has improved in usage and popularity and now ranks in the top 10 data storage technologies, refer bullet point number 1 in Appendix, Sources, Chapter 7: Redis and Complementary NoSQL Technologies.

Relational databases, particularly those that support SQL, are the oldest and most popular data storage technologies. Starting with the large enterprise Relational Database Management Systems (DBMS) from Oracle and Microsoft, to the widely popular MySQL (now owned by Oracle) and Postgres open source systems, has become part of the mix of data storage technologies used by most enterprises. For smaller organizations, one of these DBMS may be the only data storage technology that they...