Recode a column based on a second table
Hello community,I already thought a while and searched here about my problem. I have a primary table with IDs and information. With the help of a second table (contains only a part of the primary table) I would like to create a column in the primary table with a "label" for those IDs which are only present in the second table.
Please have a look at my screenshot. I think that will give a clearer pi...