DATA Step Call Routines for Macros
You can interact with the Macro Facility using DATA step call routines.
Resolves the argument, and issues the resolved value for execution at the next step boundary.
DATA step call routine
can be one of the following:
• a character string, enclosed in quotation marks. Argument within single quotation marks resolves during program execution. Argument within double quotation marks resolves while the DATA step is being ...