Darren,

Not sure of your exact requirements but you might try using PROC COMPARE for finding differences. I use it and it works very well when comparing two SAS Datasets for minor and major differences. You will have to set your "BY" values to meet your needs.

If record position is a problem then COMPARE will not work for you in this situation unless you sort both files first. In addition, it is assumed both files have the same number of records to do the comparison.

HTH, Charles Patridge Email: Charles_S_Patridge@prodigy.net