Persistent Multidimensional Arrays (Globals)
A global is a sparse, multidimensional database array. A global is not different from any other type of array, with the exception that the global variable name starts with a caret (^). Data can be stored in a global with any number of subscripts; subscripts in InterSystems IRIS are typeless.
The following is an example of using a global. Once you set the global ^x, you can examine its value:
SET ^x = 10
WRITE "The value of ^x is: ", ^x,!
SET ^x(2,3,5) = 17
WRITE "The value of ^x(2,3,5) is: ", ^x(2,3,5)
For more information on globals, see Multidimensional Arrays and Using Globals.
