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SAS - What is the primary variable in your study?




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asked mar September 20, 2014 06:29 AM  

What is the primary variable in your study?


           

1 Answers



 
answered By vishnoiprem   0  

primary key variable is unique, and it is very helpful when you need to find some information from other related tables that also contain the same variable.

for Eg: claim_id could be a primary key variable in clinical study

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