Scope of opened files
Files that are opened within the user default activation group are scoped to the call level number of the calling program (default).
A call level number is a unique number that the system assigns to each call stack entry. Files that are opened within a named activation group are scoped to the activation group level (default).
You can change the scope of an open operation by using override commands. For example, you can change the scope of an open operation to the job level.
Parent topic:
Opened files
Related concepts
Overrides
Displaying information about open files