https://communities.sas.com/t5/SAS-Procedures/help-in-interpretation-of-the-SAS-code/m-p/60550#M17171 You really need to start looking up things for yourself. You are never going to learn how to do this on your own if you keep asking people to explain every little detail/solve your coding problem. Google proc sort and I am sure you can find lots of info and explanations. Sat, 20 Feb 2010 02:23:55 GMT RickM 2010-02-20T02:23:55Z https://communities.sas.com/t5/SAS-Procedures/help-in-interpretation-of-the-SAS-code/m-p/60549#M17170 hello ,<BR /> <BR /> Kindly help me in interpretation of the code :<BR /> <BR /> proc sort data = sc.target121999 out = sortb;<BR /> by FlightID;<BR /> <BR /> <BR /> Kind Regards ,<BR /> <BR /> mark Sat, 20 Feb 2010 02:15:36 GMT https://communities.sas.com/t5/SAS-Procedures/help-in-interpretation-of-the-SAS-code/m-p/60549#M17170 deleted_user 2010-02-20T02:15:36Z https://communities.sas.com/t5/SAS-Procedures/help-in-interpretation-of-the-SAS-code/m-p/60550#M17171 You really need to start looking up things for yourself. You are never going to learn how to do this on your own if you keep asking people to explain every little detail/solve your coding problem. Google proc sort and I am sure you can find lots of info and explanations. Sat, 20 Feb 2010 02:23:55 GMT https://communities.sas.com/t5/SAS-Procedures/help-in-interpretation-of-the-SAS-code/m-p/60550#M17171 RickM 2010-02-20T02:23:55Z