Many database vendors have long used an open core model, in which the foundational model is an open source licensed code base, with added enterprise-grade features for reporting, scalability and management available under a proprietary license.
However, some database vendors, including MongoDB, Redis, Confluent and CockroachDB among others, no longer use OSI-approved open source database software licenses for their core projects and instead have resorted to creating their own licenses.
Some of the products that appear on this site are from companies from which QuinStreet receives compensation. This compensation may impact how and where products appear on this site including, for example, the order in which they appear. QuinStreet does not include all companies or all types of products available in the marketplace.