FREE dobj.
The FREE statement has the same effect as the CLEAR
statement for any data objects except internal tables.
For internal tables, FREE has the same effect as the
REFRESH statement, though the entire memory area occupied by the
table rows is released, and the initial memory area remains unoccupied. If
dobj is a structure with table-like components, the memory of each table-like component is released.
If dobj is an internal table with a
header line, FREE has the same effect as REFRESH on the
table body, and not the header line.