Yes but it's static (you won't be prompted) in DI Studio session. One use is to send in parameters from an outer job using the loop transform. The parameters defined occurs as macro variables which you could use for logic and assignment in the job.
Data never sleeps
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Need to connect to databases in SAS Viya? SAS’ David Ghan shows you two methods – via SAS/ACCESS LIBNAME and SAS Data Connector SASLIBS – in this video.