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Release 3.1-0 of the QM Multivalue Database is now available

This release brings the exception handling introduced in experimental form in release 3.0-7 into fully supported form. Combined with recent extensions to QM's object oriented programming capabilities, these features help to make the programming environment more familiar to developers from other backgrounds.

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Release Date: Sunday, June 30, 2013

This release brings the exception handling introduced in experimental form in release 3.0-7 into fully supported form. Combined with recent extensions to QM's object oriented programming capabilities, these features help to make the programming environment more familiar to developers from other backgrounds.

As well as supporting user defined exceptions, the enhanced exception handling mechanism allows applications to trap many of the system generated events that would otherwise cause a program to abort. These can be trapped with specific exception handlers or by use of QM's exception class mechanism to group exceptions based on broader categories.

A program can use the CAUGHT() function to determine whether there is an exception handler active for a named exception.

The CLASS statement has been enhanced to allow initialization data to be passed into inherited classes.

For ECS users, a user definable character type flag has been added to the ECS character maps. This can be set/cleared using EDIT.MAP and tested in programs using the QMBasic IS.USER.CHAR() function. The EDIT.MAP command now also includes the ability to import modifications from a text file.

Installation of QM on a USB memory stick no longer requires the USBConfig tool to be run.

Except when installing on a USB memory stick, the Windows installer now adds the bin subdirectory of the QMSYS account to the PATH environment variable if it is not already present.

The extended statistics report from ANALYSE.FILE has been enhanced to include a group utilization histogram.

The COMO command now allows an alternative file name to be specified.

The LIST.COMMON command DETAIL option reports where each common block was created as an aid to diagnosis of size mismatch errors.

The NO.ECHO.DATA setting of the OPTION command is equivalent to compiling all programs with the $MODE compiler directive option of the same name. It suppresses display of input taken from the DATA queue.

The PHANTOM command supports a mechanism to change the log file location.

The SED editor uses terminfo to establish bindings for special keys. SED also now has a READ.ONLY command to set a buffer to read-only mode, minimizing the risk of accidentally overwriting data.

The QMBasic DIR() function has been extended to include the size of each file.

An optional DESCENDING qualifier has been added to the QMBasic SSELECT, SSELECTN and SSELECTV statements to sort into descending order.

The WRITE.DELETE.THEN.ELSE setting of the QMBasic $MODE compiler directive can be used to enable use of THEN/ELSE in place of ON ERROR when trapping trigger function errors in WRITE or DELETE. Beware that use of this potentially exposes a semantic ambiguity in programs.

A new globally catalogued subroutine, !OSCOPY, simplifies copying of files or directories at the operating system level from within programs.

 

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About Ladybridge Systems Ltd

Ladybridge Systems was founded in 1992 by former Prime Computer personnel and is headquartered in Hardingstone, Northampton, England. The primary activity of the company is the OpenQM multivalue database for which Zumasys were appointed as worldwide sales and marketing partner in January 2015. Ladybridge Systems also provide training, consultancy, development, and maintenance services to MultiValue databases in the UK and worldwide. Ladybridge Systems remains a small privately owned company, offering a personal level of service to clients around the world.

For more information, visit http:/​/​www.ladybridge.com

About OpenQM

Effective 1/1/15 Zumasys is the Worldwide Distributor for OpenQM. Users with licenses issued prior to 1/1/15 should visit the Ladybridge website.

OpenQM is a high-performance, self-tuning database with an extremely efficient footprint. At less than half the price of comparable databases, OpenQM comes bundled with AccuTerm and provides incredible value for MultiValue resellers and end users alike. Auto-sizing of database files, object oriented programming, class and exception handling, simplified web development and more can be yours with a move to OpenQM.

Why OpenQM

OpenQM has long sought to revolutionize the MultiValue industry, taking MultiValue to new heights of performance and expectation. OpenQM support and maintenance is now available for the first time directly from Zumasys, one of the largest development and engineering teams in the MultiValue market. With technical support engineers located across the United States and England, you'll always be able to reach someone who knows the importance of keeping your MultiValue application up and running.

Their software developers, technical support engineers, infrastructure experts, and cloud engineers will work with you to support, protect, and modernize your OpenQM database-whether on site or in the cloud. Their cloud platform is optimized for MultiValue database applications using industry-leading technologies from VMware, NetApp, and Cisco, and housed in the world's most secure data center, The SuperNAP, managed by expert engineers who understand your business. They take care of everything including backups, system administration, and monitoring so you can focus resources on your core business while maintaining complete control of your data and applications.

OpenQM In The Cloud

The Zumasys cloud platform has been optimized with Flash memory at multiple tiers to address the disk I/O requirements of OpenQM and other MultiValue databases. If you're interested in leveraging the efficiency, security, and performance of MultiValue in the cloud, Zumasys can help.

Since 2006, Zumasys has provided enterprise-class cloud hosting for Oracle, SQL and Pick MultiValue applications. They have the depth and experience to keep your systems running. Visit www.zumasys.com/cloud for more information on their architecture, monitoring and customer references.

OpenQM At A Glance

OpenQM began in 1993 as an embedded database from Ladybridge Systems. It was released in its own right in mid-2001 on Windows systems and extended to Linux in 2003 and FreeBSD in 2004. In 2015, OpenQM announced a partnership with Zumasys to provide worldwide distribution, to create a comprehensive telephone support/maintenance program and to multi-tenant OpenQM on the Zumasys Cloud. This allows customers to quickly provision OpenQM servers in the cloud and benefit from a convenient, affordable monthly fee for the database, operating system and underlying infrastructure.

Zumasys helps companies of every size transition their infrastructure and applications to the cloud. With Zumasys cloud services, customers can easily access the latest software and hardware technologies over the Web, allowing them to focus on growing their core business instead of managing their IT infrastructures. Zumasys delivers personalized service, integrated disaster recovery and the confidence companies need to outsource the hosting of all their databases including SQL, Oracle and Pick MultiValue systems.

For OpenQM inquiries please visit: http://www.openqm-zumasys.com/ Users with licenses issued before 1/1/15 please visit: www.ladybridge.com

For more information, visit http:/​/​www.openqm.com

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