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Meet some database management systems you are likely to hear more about in the future
At midsummer we think it is a good time to dive a bit deeper into our ranking and give a special focus on those systems which show a very strong upward trend but are still somehow in the shadow of the top systems.
We compared the rankings of August 2013 and August 2014, and discovered a couple of interesting systems and some surprises:
RethinkDB: This system made the biggest move forward by skipping 38 positions. However, with the current rank of 107 it is still not within the top 100 systems. RethinkDB is an open source document store built to store JSON documents with a query language supporting distributed joins, aggregation and subqueries.
NuoDB improved by 26 ranks over the last 12 months and is currently number 82. It is a webscale distributed relational DBMS, that supports ANSI SQL and ACID transactions. Based on a durable distributed caching architecture, it provides horizontal scaling with continuous availability and geo-distribution for cloud deployment. Gartner placed it on its 2013 Magic Quadrant for Operational DBMS and mentioned it as 'cool vendor'.
Cloudant gained 25 positions in the last year and is now number 65. This boost was definitely caused by its acquisition by IBM in March 2014. Cloudant is a cloud-based data service for JSON-style documents. It is targeted to mobile and web developers to quickly and easily store and access data via an easy to use API.
MemSQL increased by 24 positions to rank 99. It is an in-memory, relational DBMS focused on OLTP workloads. As its main competitors in that niche it names SAP Hana and VoltDB, which both are equally showing a very strong trend: SAP Hana gained 3 positions, being number 23 now and VoltDB skipped 10 positions to rank 81.
There are a few other systems worth mentioning for their upward trend in the last 12 months: Hazelcast, one of the leading in-memory data grid systems improved from position 64 to 43. Titan, Redshift, AllegroGraph, Algebraix, FoundationDB, Sparksee, ArangoDB, HyperSQL and CloudSearch have nothing in common except that each improved by about 15 positions.
The most significant changes within the top systems are: Elasticsearch (from 22 to 16) constantly approaching to Solr, Redis (from 14 to 11) scratching the top 10 systems, MariaDB (from 34 to 27) as an alternative to MySQL, Couchbase (from 29 to 25) catching up with its partner system (or should we say rival) CouchDB, Neo4j (from 25 to 22) the leading graph oriented DBMS and finally HBase (from 17 to 15) representing the Hadoop ecosystem.
The last 12 months have seen three advances within the top 10 systems: MongoDB improved 1 position to rank 5 (by overtaking DB2), SQLite (from 9 to 8) obviously profiting from its use within Android, and Cassandra (improved 1 position and entered the top 10) as the most prominent wide column store.
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