The system file table points to other file-specific information like inodes, NFS server addresses, or protocol-control blocks for file descriptors associated with sockets.

In principle, these mechanisms are very similar to the userland/kernel separation used by modern operating systems (e.g. the unix file descriptor table).

When you use the DBLOAD procedure to create a table, the procedure issues dynamic SQL statements to create the table and insert data from a SAS data file, DATA step view, PROC SQL view, or view ...