Here are a couple of options.
Tom
https://blogs.sas.com/content/sasdummy/2013/01/21/turn-your-data-set-into-a-data-step-program/
https://communities.sas.com/t5/SAS-Communities-Library/How-to-create-a-data-step-version-of-your-data-AKA-generate/ta-p/258712
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