MongoDB stores data in JSON-like documents that can vary in structure, offering a dynamic, flexible schema....

Apache CouchDB is a database that uses JSON for documents, JavaScript for MapReduce indexes, and regular HT...

Apache HBase is an open-source, distributed, versioned, column-oriented store modeled after Google' Bigtabl...

Distributed SQL Query Engine for Big Data

Apache Kylin™ is an open source Distributed Analytics Engine designed to provide SQL interface and multi-di...