kdb

kdb+: The world’s most powerful number cruncher.
“Kx offers kdb+, a high-performance column-store database with a built-in expressive query and programming language, q. Used as a central repository to store time-series data within an enterprise, kdb+ supports real-time analysis of billions of records and fast access to terabytes of historical data. ”
http://kx.com/software.php

Two ways of querying Kdb
1) qSql for Kdb
2) Q Programming Language for Kdb

Q Studio: for easy qSql usage for KDB. qSql is the query language for KDB.
http://www.timestored.com/qstudio/
http://www.timestored.com/qstudio/download

 

Q is the programming language for Kdb.

Q is a interpreted vector based dynamically typed language language built for speed and expressiveness.
http://www.timestored.com/kdb-guides/kdb-database-intro#q-language

 

Learning Sources

kx community
http://kxcommunity.com/blog.php

kdb+ tutorials
http://code.kx.com/wiki/Tutorials

 

 

Other Links

The Top Column-Oriented Databases Compared
“Open Source Column Databases
Financial Tick Databases
Commercial Column-Oriented Databases”
http://www.timestored.com/time-series-data/column-oriented-databases

Column-oriented DBMS
https://en.wikipedia.org/wiki/Column-oriented_DBMS