Hi,   The REVERSE function sounds like all you need. I'm assuming there were a few typo's in your question and that you wanted a literal reverse of the character string presented. eg. Data _null_;  cs = 'CharacterString'; Put cs=;  rcs = reverse (cs); put rcs=; run;   This will show in the log as: cs  = CharacterString rcs = gnirtSretcarahC   Note, if the value of the character string (cs) was 'Char    ' then the reversed string would be '    rahC' so you may want to use one of SAS's many blank removing functions to strip away the leading blanks - a simple use of the LEFT function here would remove the leading blanks.  e.g. LEFT(REVERSE(cs)) would give you 'rahC    '.   If this isn't what you require perhaps you can specify more detailed requirements?   BPD ... View more

Here's an easy way to read behind:   data samp_rd; set samp nobs=nobs; IF _N_ >= 2 then set samp(keep = indicator rename=(indicator=ind2)); IF _N_ >= 3 then Set samp (keep = indicator rename=(indicator=ind3)); put _all_; run;   It reads and renames the variable you're interested in first when you get to your second obs and then when you get to your 3rd obs. When indicator = ind2 = ind3 = 'Y' , you've found the condition you're looking for.   Regards, ... View more