Ranking > Categories
Number of systems per category, April 2014
|DB-Engines lists 216 different database management systems, which are classified according to their database model (e.g. relational DBMS, key-value stores etc.).|
This pie-chart shows the number of systems in each category. Some of the systems belong to more than one category.
Ranking scores per category in percent, April 2014
|This chart shows the popularity of each category. It is calculated with the popularity (i.e. the ranking scores) of all individual systems per category. The sum of all ranking scores is 100%.|