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Q:  

I am trying to merge two files using SAS and I am getting a message that says "variable stcnty has been defined as both character and numeric." The merge did not work.

A:  

Take a look at your input format statements. You have read your merging variable (stcnty) in as a character variable in one case, e.g., (stcnty $ 1-5) and as a numeric variable (stcnty 1-5) in the other. Change the format in one case so that they have the same format.

If this is a system file and you cannot see the input format, you can change the character variable to a numeric variable using these commands:

newid = stcnty*1;

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