DBTA highlights the leaders in NoSQL

When NoSQL first hit the IT consciousness in 2009, an explosion of NoSQL databases seemed to appear out of thin air. Some of these contenders had in fact been around for some time, with others thrown together rather quickly to exploit the NoSQL buzz.  Over time, the NoSQL pack thinned out as leaders in specific categories emerged.  For document-oriented databases, in my opinion, the clear leader is MongoDB; for big table-style databases, both Cassandra and HBase contend for leadership; while in graph databases, Neo4J remains the undisputed king.

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