![Pre-assign SAS libraries? If so, which method?](https://blogs.sas.com/content/sgf/files/2013/05/preassign12.png)
As we have seen my previous post "Seeing SAS data through metadata", there is a fundamental difference between accessing a SAS library using a physical reference or a metadata reference to that library. By now, you should now be an expert on the nuances of physical references to SAS data