☜	Error Code M22 M[UMPS] by Example					☞

M22, SET or KILL to ^$Global when data in global

Introduced in the 1995 ANSI M[UMPS] language standard.

The structured system variable ^$Global contains information about global variables (allocation, protection, access control, etcetera). Certain information about global variables can only be entered into these structured variables before the global variables that they describe are actually created. When creating the global variable in question, the parameters specified in the structured system variable will be applied, and it may not generally be possible to undo this without completely re-creating the global variable in question.

An attempt to define or delete such information in this structured system variable about a global variable that currently exists will cause this error to occur.

Copyright © Standard Documents; 1977-2024 MUMPS Development Committee;
Copyright © Examples: 1995-2024 Ed de Moel;
Copyright © Annotations: 2003-2008 Jacquard Systems Research
Copyright © Annotations: 2008-2024 Ed de Moel.

The information in this page is NOT authoritative and subject to be modified at any moment.
Please consult the appropriate (draft) language standard for an authoritative definition.

Some specifications are "approved for inclusion in a future standard". Note that the MUMPS Development Committee cannot guarantee that such future standards will indeed be published.

This page most recently updated on 29-Nov-2011, 22:30:57.

For comments, contact Ed de Moel (demoel@jacquardsystems.com)