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EXtremeDB
eXtremeDB is a high performance, low-latency, ACID-compliant embedded database management system using an in-memory database system (IMDS) architecture and designed to be linked into C/C++ based programs. It works on Windows, Linux, and other real-time and embedded operating systems. Building on this core IMDS, there are several
editions supporting high availability, database clustering, hybrid (in-memory and disk-based) data storage, columnar layout of time series data (such as financial market data) and other specialized abilities.
== History ==
McObject introduced eXtremeDB in 2001, targeting embedded systems running in resource-constrained environments (i.e. with limited random-access memory and relatively low-powered central processing units). eXtremeDB characteristics appealing to this market include a small code size (approximately 150 KB), native C language application programming interface, available source code, and a high degree of portability (to support the varied processors and operating systems used in embedded systems). Early deployments by customers included integration in digital TV set-top boxes, manufacturing and industrial control systems, and telecom/networking devices. eXtremeDB emerged to manage what industry analysts, and McObject, portray as significant growth in the amount of data managed on such devices; the company claims eXtremeDB was the first embedded database management system (DBMS) developed specifically for such environments〔(Cold, hard data that’s deep ), eeProductCenter (EE Times)2/28/05〕〔(Remember the KISS principle? ) Forrester Research, 11/13/2009〕〔(Re-inventing embedded database technology for embedded systems and intelligent devices ). McObject white paper hosted on Scribd.com, 2009〕
Later editions targeted the high performance non-embedded software market, including capital markets applications (algorithmic trading, order matching engines) and real-time caching for Web-based applications, including social networks and e-commerce. Features added to support this focus include a SQL ODBC and JDBC interfaces, 64-bit support, and multiversion concurrency control (MVCC) transaction management.〔(McObject’s New Business Looks Anything Like Embedded ), Embedded Software Blog, VDC Research, 6/30/2010〕
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