Can you mix ascending and descending columns in an Index i.e you can create the following with default behaviour as ascending except for transdate with a behaviour of descending.

CREATE INDEX stpartfifo##idxlifo ON stpartfifo(U##store_code , U##part_code , availquantit , transdate desc, uniquetrans , PROGRESS_RECID)

I have read some articles which state in Oracle you can either have an index as ascending or descending but can mix the two?

I am working with Oracle 817 and Oracle 9i. Please Help.