passing CLOB in Stored Procedure as IN/OUT

Hi,

I am trying to get an answer for 'Is it required to create a tem****ary
lob before doing an in/out operation on a lob being passed as in/out
parameter in a stored-procedure?"

I have seen some of the OCI samples, wherein tem****ary lob is created
using OCILobCreateTem****ary call and then we use OCILobWrite or
OCILobRead call but could not find a reason to do so.

I think it is logical to create a tem****ary lob for a table having
CLOB column rather for stored-procedure.

any suggestions will be helpful

Thanks,
Sachin