You've seen that you can assign librefs in order to access
different types of data. Using the Programming
explained that after you have assigned a
libref, you can view
details about the library that
the libref references
contents and properties of files
in the library.
The libraries that are currently defined for your SAS session are
listed under Libraries in the Explorer window. To view details
about a library, double-click Libraries (or select Libraries→Open from the
pop-up menu). Then select View→Details.
Information for each library
(name, engine, type, host pathname, and date modified) is listed
under Active Libraries.