Set the cursor to refer to the last key/data pair of the database,
and store that pair in Current. If the last key has
duplicate values, the last data item in the set of duplicates is
stored in Current.
Set the cursor to refer to the last key/data pair of the database,
and store that pair in Current. If the last key has
duplicate values, the last data item in the set of duplicates is
stored in Current.