https://communities.sas.com/t5/SAS-Procedures/help-with-merge/m-p/10569#M1024 you could try recoding so that if data= date2 then date2=. then you could remove the missing, that may work Fri, 11 Apr 2008 16:24:12 GMT deleted_user 2008-04-11T16:24:12Z https://communities.sas.com/t5/SAS-Procedures/help-with-merge/m-p/10568#M1023 Hi all. I merged two datasets with 2 different date variables. However some dates are the same for both variables (ex. date=12/1/07 date2=12/1/07). My question is:<BR /> Is there a way to remove the dublicate variable (and somehow keep the 1st one)? <BR /> For ex., can I say:<BR /> <BR /> data all;<BR /> merge one two;<BR /> by name;<BR /> if date=date2 then remove date2;<BR /> run;<BR /> <BR /> Any help would be appreciated. Thanks. Fri, 11 Apr 2008 15:28:12 GMT https://communities.sas.com/t5/SAS-Procedures/help-with-merge/m-p/10568#M1023 deleted_user 2008-04-11T15:28:12Z https://communities.sas.com/t5/SAS-Procedures/help-with-merge/m-p/10569#M1024 you could try recoding so that if data= date2 then date2=. then you could remove the missing, that may work Fri, 11 Apr 2008 16:24:12 GMT https://communities.sas.com/t5/SAS-Procedures/help-with-merge/m-p/10569#M1024 deleted_user 2008-04-11T16:24:12Z