https://communities.sas.com/t5/SAS-Procedures/How-to-clean-data-in-quot-Call-symput-quot/m-p/75791#M22003 I assume that "special word" refers to macro variable.<BR /> <BR /> If that is correct, macro variables can be deleted via the %SYMDEL statement. Tue, 20 Apr 2010 17:36:16 GMT Paige 2010-04-20T17:36:16Z https://communities.sas.com/t5/SAS-Procedures/How-to-clean-data-in-quot-Call-symput-quot/m-p/75790#M22002 Hi there, we can use "call symput" to put data or number under a special word.<BR /> but how can we clear all these memories. Since I have to put "call symput" in macros and do loops. I want to make sure all the "word"s I will used have been cleaned.<BR /> Thanks! Tue, 20 Apr 2010 16:18:52 GMT https://communities.sas.com/t5/SAS-Procedures/How-to-clean-data-in-quot-Call-symput-quot/m-p/75790#M22002 Ken_oy 2010-04-20T16:18:52Z https://communities.sas.com/t5/SAS-Procedures/How-to-clean-data-in-quot-Call-symput-quot/m-p/75791#M22003 I assume that "special word" refers to macro variable.<BR /> <BR /> If that is correct, macro variables can be deleted via the %SYMDEL statement. Tue, 20 Apr 2010 17:36:16 GMT https://communities.sas.com/t5/SAS-Procedures/How-to-clean-data-in-quot-Call-symput-quot/m-p/75791#M22003 Paige 2010-04-20T17:36:16Z https://communities.sas.com/t5/SAS-Procedures/How-to-clean-data-in-quot-Call-symput-quot/m-p/75792#M22004 Thanks, that is what I am looking for Tue, 20 Apr 2010 17:45:34 GMT https://communities.sas.com/t5/SAS-Procedures/How-to-clean-data-in-quot-Call-symput-quot/m-p/75792#M22004 Ken_oy 2010-04-20T17:45:34Z