Detecting duplicates to find errors

[tdoebler]

We all know that you can eliminate duplicate rows in Cognos impromptu but I would like to find duplicate rows in a certain report since those would actually be errors.  Any ideas?  Thank you.

[rlmarshall]

if you have columns A,B,C,D,E,F,G
you  create calc column H = count('same') for A, B, C, D, E, F, G
and then create a summary filter where H > 1