Thanks for your response. Sorry. What I mean by "testing contents" is, being a new programmer, I often slide in print statements in my code as I build it, to make sure that variables/data structures are getting populated the way I want them to. So, I'm trying to do the same, before I tackle passing the output of the program to DBI (if poss.as you noted). Also, I've got to read some more on DBD::CSV. I'm not sure that it supports "join()". UPDATE: Before the --'s start to really flow, what I meant was "join tables", which is a database function. I don't believe that DBD::CSV has that functionality.