This all falls under integrity rues and constraints. Such are usually implemented in database systems, like Oracle, DB/2, MySQL, MS SQL Server, Postgres, and many others.
ER Studio/ERwin are usually used for storing ER models. There are many alternatives out of there and some DBs have them built in these days.
Good news: We've extended SAS Hackathon registration until Sept. 12, so you still have time to be part of our biggest event yet – our five-year anniversary!
Learn how use the CAT functions in SAS to join values from multiple variables into a single value.
Find more tutorials on the SAS Users YouTube channel.
Ready to level-up your skills? Choose your own adventure.