topic Re: Proc Sql Merging two datasets based on variables of different names in SAS Programming

Proc Sql Merging two datasets based on variables of different names

kmardinian — Thu, 27 Sep 2018 16:46:51 GMT

Hi, I would like to merge together the dataset dm1 and all2, but the variables that match up are labeled differently. Would this be the correct way to merge them together without losing observations? Thank you!

proc sql;
create table all2
as select * from dm1 a full join all b on a.subjid=b.subjid_vm;
run

Re: Proc Sql Merging two datasets based on variables of different names

ballardw — Thu, 27 Sep 2018 18:02:33 GMT

@kmardinian wrote:

Hi, I would like to merge together the dataset dm1 and all2, but the variables that match up are labeled differently. Would this be the correct way to merge them together without losing observations? Thank you!

proc sql;
create table all2
as select * from dm1 a full join all b on a.subjid=b.subjid_vm;
run

Should work as long as the values of the two variables are of the same type and have the same content. If character you might have issues with leading blanks or capitalization ("Name" does not equal "name") which could be addressed by

upcase(a.subjid) = upcase(b.subjid_vm)

Re: Proc Sql Merging two datasets based on variables of different names

kmardinian — Thu, 27 Sep 2018 18:51:07 GMT

Yes, the variables are the same type. Just wanted to make sure the merge would work correctly. Thank you for checking that for me