I am trying to merge a txt file and a SAS file. The text file (so tried to change it via dbms=dlm) and the file is not configured properly and I have to assign variables to certain columns (eg columns 6-7 represent age, but we have to code for that bc the numbers are just raw data). The names in the SAS file are too long and so I tried renaming them something more code appropriate eg weight_lbs but also received errors. When trying to do a "keep" command to show the variables to keep, I got the error for both. the sets are called "dep" and "nutrition" error is "work.dep.data does not exist" and "work.nutrition.data does not exist". Bc of this wen I try to merge it says that there are no shared values, but I want to the values of only observations in both files.