Find variable names that are in one dataset but not in another

[eagles_dare13]

If I have 2 data sets:

data investment;  

   begin='01JAN1990'd;

   end='31DEC2009'd;

  run;    

data investment_2;  

   begin='01JAN1990'd;

     run; 

I wish to write a program that will give me list of all columns that are in investment but not in investment_2. So in this case, the variable 'end'.

How to do this? I dont want to list out the column names using proc contents on eaqch dataset and then manually eyeball it and check for differences.

[data_null__ · Accepted solution]

proc compare base=investment(obs=0) compare=investment_2(obs=0) listbase;
   run;