Top Downloads News Highlights
McObject wins IoT Vendor of the Year Learn more

Aurea uses McObject’s eXtremeDB® for ultra-fast analysis. Processing time cut from days to seconds.  Learn more.

McObject Shortlisted in a Second Computing Award in Just Five Months Learn more

What is a Distributed Database System?  Read the Internet of Things Agenda, Tech Target article by McObject CEO Steve Graves. 

McObject’s eXtremeDB named Outstanding Structured Database by Computing’s highly-respected Big Data Excellence Awards. Learn more

XtremeDB running on E8 Storage sets multiple records in STAC benchmark tests.  Read the press release

New eXtremeDB v.8.0 Financial Edition for HPC offers excellent performance and a host of new features. Read the press release

On Time Series Analysis and Big Data. Read the interview with Andrei Gorine

McObject shortlisted in Outstanding Structured Database category in Computing Big Data Excellence Awards. Read the press release.

IoT Global Awards Shortlists McObject in Two Categories. Read the press release.

Printable Version

McObject’s eXtremeDB 2.0 Adds Flexibility and Features To Powerful Memory-based DBMS

April 15, 2002 — McObject has released version 2.0 of its eXtremeDB small footprint, main memory database, with new features that improve developer flexibility and enhance the run-time capabilities of applications based on eXtremeDB.

McObject built eXtremeDB from scratch to meet the CPU and RAM constraints of intelligent, connected devices while offering dramatic performance improvements over traditional disk-based database systems. Enhancements in version 2.0 include:

  • Object versioning. This feature allows the database to keep a history of versions of an object. The developer can specify how many historical copies to keep.
  • Notifications. Similar to the concept of triggers in enterprise databases, this function notifies another application process when something of interest in the database has changed. Uses include propagating changes through a network, such as IP route table updates. eXtremeDB offers synchronous and asynchronous notifications.
  • New data types supported. Among the new data types, autoid causes eXtremeDB to automatically create a system-generated primary key for an object when it is inserted in the database, and 8-byte integers support the use of eXtremeDB on 64-bit operating systems.
  • Performance improvements. Depending on application usage, eXtremeDB 2.0 performs up to 20% faster than eXtremeDB 1.2.

Visitors can view a complete data sheet on improvements in eXtremeDB 2.0. An evaluation version of eXtremeDB 2.0 is available for free download.

With a tiny footprint of 100K or less, eXtremeDB supports the data-hungry features of next-generation set-top boxes, network switches, industrial automation and other intelligent devices. It delivers critical data management features, and accelerates processing by storing and working with data in main memory.

McObject provides complete database source code for eXtremeDB. The database runs on all Windows platforms as well as Linux, VxWorks and virtually all other operating systems, including RTOSs.

About McObject

McObject LLC, based in Issaquah, WA, is committed to building data management technology that makes intelligent devices smarter, and to providing first-rate support and consulting services to customers and partners. With more than 30 years experience in compilers, real-time systems, embedded data management and kernel level device-driver development, McObject's founders are well-suited to deliver database technology that becomes as ubiquitous as computing itself. The company can be reached at
425 831 5964, or visit

McObject and eXtremeDB are trademarks of McObject LLC. All other company or product names mentioned herein are trademarks or registered trademarks of their respective owners.