To evaluate the given SQL statement TRUNCATE TABLE DEPT;, let's go through each option to determine which are true:
Option A) It releases the storage space used by the table - This option is true. The TRUNCATE statement removes all rows from the table and releases the storage space used by the table.
Option B) It does not release the storage space used by the table - This option is false. As mentioned above, the TRUNCATE statement does release the storage space used by the table.
Option C) You can roll back the deletion of rows after the statement executes - This option is false. The TRUNCATE statement cannot be rolled back. Once the statement executes, the rows are permanently deleted.
Option D) You can NOT roll back the deletion of rows after the statement executes - This option is true. As mentioned above, the TRUNCATE statement cannot be rolled back.
Option E) An attempt to use DESCRIBE on the DEPT table after the TRUNCATE statement executes will display an error - This option is false. After the TRUNCATE statement executes, the table structure remains intact. You can still use DESCRIBE or any other metadata query on the table.
Option F) You must be the owner of the table or have DELETE ANY TABLE system privileges to truncate the DEPT table - This option is true. To truncate a table, you need to have the necessary privileges. Typically, you must either be the owner of the table or have the DELETE ANY TABLE system privilege.
Therefore, the correct options are A, D, and F.