Powered by QM on a Windows server
Home
About OpenQM
Sales and Downloads
Dealers Area
Help and Support
Tip of the Week
Privacy Policy
Links
Contact Us
Taking Multivalue Where It Has Never Been Before...

OpenQM™ is the only multivalue database available both as a fully supported commercial product and in open source form under the General Public Licence. Multivalue databases embrace the growing No SQL movement and are widely accepted to be faster, smaller and lower cost than relational databases.

The name OpenQM is a generic term used to describe both the open source and the commercial 'closed source' versions of the QM database.


The Commercial Version

QM is available on Windows, Linux (Red Hat, Fedora, Debian, Ubuntu, Centos, Suse, etc), FreeBSD, AIX, Mac OS X, Solaris and Windows Mobile. Please ask if you need other platforms.

QM scales from single user systems to those running very large user communities and is ideally suited to today's big data applications, hosted on private servers or in the cloud.

A list price of less than one fifth of the price of some other multivalue products and no mandatory support contracts makes the total cost of ownership of the QM database highly attractive. A staged payment option is available for competitive upgrades.

The licence includes either one or ten years of free upgrades to new releases and platform changes. This period can be extended prior to expiry.

All new commercial QM licences include activation of the latest AccuTerm 7 - a complete GUI environment and terminal emulator - at no extra cost. Users with QM licences issued before May 2010 need a new AccuTerm activation code.

Reasonable levels of support are provided without charge for the first 60 days of a licence. Continued support is available from the distributor, dealer or directly from Ladybridge Systems at highly competitive prices based on actual use of the service or by pre-paid contract.

Standard features include:

  • A managed application environment for rapid development, reliability and ease of maintenace.
  • A zero maintenance file system for ease of use and minimal system administration.
  • Query processor output in tabular, CSV and XML form.
  • QMClient API for secure access to QM files and execution of commands and programs from other languages such as PHP, Java, Visual Basic and C/C++/C#.
  • QMNet for access to QM data files on other servers.
  • Virtual File System for access to alien file structures.
  • Interface to MySQL and Sybase for SQL retrieval and update.
  • Encryption of data files and network data for QMClient and QMNet using AES 128, 192 or 256 bit algorithms.
  • Object oriented programming fully integrated into the QMBasic programming language.
  • Extensive user security options including account restrictions, QMNet server access control and PAM authentication.

Licence options include:

  • Reduced cost licences for standby systems.
  • Device licensing to allow multiple connections from the same client system to consume only a single licence.
  • Data replication for maintenance of standby servers or reporting systems

To download the commercial QM release 3.0-8 click here.

For third party applications and development tools, click here.

The Personal Version

There is a free Personal Version of QM available for non-commercial use. It is intended primarily for educational purposes but can be used for small private projects.


Migration to QM

Although QM is not a clone of any other multivalue environment, it includes many features that provide a high degree of compatibility and minimise the effort required to migrate applications.

QM can import data from standard ACCOUNT-SAVE, FILE-SAVE and T.DUMP exports and has tools to extract data directly from some other environments.

Programs, scripts and dictionaries often require only minimal changes.

Read case studies of users who have migrated to QM.

An assisted migration service is available to help you get up and running on QM quickly.



The Open Source Version

The open source version is intended for developers who want to experiment with new ideas with the possibility of contributing them to the mainstream QM product. It is not considered to be suitable for production use in a business environment.

This version is based on release 2.6-6 from November 2007 and contains only the core multivalue database components but it is adequate for the purpose for which it was released.

The open source version is released as a package that will build on Linux though users are free to migrate it to other environments.

This version of QM and modifications made to it can be freely used and distributed within the terms of the General Public Licence. In common with all software released under the GPL, the open source version comes with absolutely no warranty or support. For guidance on which version is right for you click here.

Visit the open source download page or see the open source resources.