Oracle Database Discussions

Hi all,
how to give a truncate grants for a table to particular user?
while i was trying to find in net i got some procedures.
after creating that procedures we have to give execute procedure grants to that user?
but i came to know partially that apart from creating procedure and giving exec grants there is something which can de done thru dictionary_accesscibility_07 view or something.
i m not sure about that.
so if anybody know pls let me know.
thanks in advance..