Migrating to OpenQM

This section gives some guidance on the documents and tools that are available to assist in migrating an application to QM.

•Transferring Data from other Multivalue Systems

•Option and Mode Shortcuts

•Conversion Tools

•User exits

Documents

A document outlining the process of migrating to QM can be found towards the bottom of the QM downloads page on the Rocket Software web site. There are two versions of this document; one for migration from Pick style systems (D3 and mvBase) and one for migration from U2 systems (UniVerse and Unidata).

Source Code

The BP file of the QMSYS account includes source code for many Pick style user exits.

Additional source modules that might be useful to developers migrating an application from D3 is available from the QM downloads page as a zip file. The content of this file is:

ACCESS

A limited emulation of some features of the D3 ACCESS() function.

D3.CREATE.INDEX

A wrapper for the D3 syntax of CREATE.INDEX.

D3.CONVERT

A wrapper for the CONVERT() function to use the D3 argument order. Use of $MODE PCONVERT provides a better solution.

D3.SORT

An emulation of the D3 SORT() function.

Details of the procedure to move a QM account to a different computer (possibly with a different operating system) can be found in the section entitled "Moving an Account".