This looks like a study or interview question. To get you started: What are the relationships between the tables? What are the candidates for primary and foreign keys.
Where does SAS come into this?
The following tutorial should help you.
https://www.sqlshack.com/a-step-by-step-walkthrough-of-sql-inner-join/
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Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
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