Thanks, but that should not be the issue. According to this message following code works fine.

  [%
      USE d = DBI(database = "dbi:AnyData:null", user = "", password =
+ "");
      d.dbh.func("users", "Passwd", "/etc/passwd", "ad_catalog");
      FOREACH user = d.query("SELECT username, homedir, GID FROM users
+");
        user.username; " has homedir of "; user.homedir;
        " and GID of "; user.GID; "\n";
      END;
    %]
[download]