Variables in Global Name

what you are looking for is called global indirection

https://docs.intersystems.com/iris20201/csp/docbook/DocBook.UI.Page.cls?KEY=GGBL_using#GGBL_using_indirect

and so on

Hi

So you can use global indirection here:

you can set a variable to the name of a global

set gbl="^MyGlobalName"

you can then do either of the following:

if $(@gbl)#10 {write !,"Global: ",gbl," has a value of ",@gbl}
else {write !,"The global: ",gbl," is not defined"}

or you can use it to reference nodes within the global root:

for gbl="^A","^B","^C","^D","^E" {write !,"Global: ",gbl," for the node: ",gbl,"(""SYSTEM"") has a value: ",@gbl@("SYSTEM")

you can also do this:

set gbl="^NigelGlobal(""Subscript1"""_","_"""Subscript2"")"
set y=$o(@gbl@(y)

which effectively reads

set y=$o(^NigelGlobal("Subscript1","Subscript2",y) )

so before this I executed the following line of code:

set ^NigelGlobal("Subscript1","Subscript2","This is a Test")=""
set y=""
set y=$o(@gbl@(y))
if y'=""  write !,y

This is a Test

if you want to use this across namespaces then you need to do the following:

set ns="My other Namespace Name" e.g. set ns="DEV", my current Namespace is "QC"
set gbl1="^MyGlobalA",gbl2="^["""_ns_"""]MyGlobalB"
merge @gbl1@("Node A")=@gbl2("Node B")

this then reads as:

merge ^MyGlobalA("NodeA")=^["DEV"]MyGlobalB("NodeB")

Yours

Nigel