Variables in the Model Program Variable names are alphanumeric but must start with a letter. The length of a variable name is limited to thirty-two characters for non-SAS data set variables PROC MODEL ...

The following SASMACRO submits a DATA step that uses the GETEXEC function to retrieve the value of the REXX variable DATALINE. It then prints the value of DATALINE in the SAS log. Note that the REXX ...