【单选题】In your test database, you have created the ORDERS table as an index-organized table (IOT). To facilitate faster querying, you have created a mapping table and a bitmap index on the ORDER_FILLED colum...
A.
Export and import the mapping table.
B.
Drop and re-create the mapping table.
C.
Truncate the mapping table and reinsert the values.
D.
Use the ALTER TABLE .. REBUILD command to defragment the mapping table.