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SAS Tip: SAS data sets contain metadata (Daily tip for 2025-Dec-31)

The number of observations in a data set is stored as a part of the data set's metadata. There are multiple ways to retrieve this number and some are better than others.

Thanks to Art Carpenter for this tip. Read more details in this paper from WUSS 2017: Building Intelligent Macros Using Metadata Functions with the SAS Macro Language.

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A "SAS tip" is a basic unit of information exchange between SAS users. The tips on this board come from sasCommunity.org, from SAS user conferences, from SAS blogs, and from freelance contributions from SAS users like you. We hope that you're able to always learn something new here!


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