Question about External Table Syntax

Regarding the External Table example at: OTN,

there is a block that includes:

Code:

---

        records delimited by newline
        badfile admin_bad_dir:'empxt%a_%p.bad'
        logfile admin_log_dir:'empxt%a_%p.log'

---

I can't seem to find the definition of %a and %p. Does anyone know what they mean?

Wouldn't you know it, 5 minutes after I post (and after quite a while of searching) I find the answer:

http://download-east.oracle.com/docs...s.htm#i1012589