SQL, NoSQL or KaunsaSQL ??

Just amazed at the pace at which new tools, technology continues to outpace each other... Never did i imagine the fact that i would need to juggle sooo many jargons especially when we are talking about an application space and not all of sofware!
MongoDB
CouchDB
Cassandra
Vertica
Hadoop
Neo4j
NoSQL
HBase
Hive
Pig
CQL
vSQL
Solr
REdis
MemcacheDB
BerkeleyDB
MapReduce
RavenDB
VoltDB
Netezza
Greenplum
Asterdata
Storm
Kafka
Drill
Dremel
Gremlin
Giraph
& so many more... I don't think i can ever ever dream of mastering majority of these:-(