Alter a table to turn on logging
To switch from a nonlogging table to a logging table,
use the SQL statement ALTER TABLE with the TYPE option of STANDARD.
For example, the following statement changes table tabnolog to
a STANDARD table:
ALTER TABLE tabnolog TYPE (STANDARD)
Important: When you alter a table to STANDARD, you turn logging
on for that table. After you alter the table, perform a level-0 backup
if you must be able to restore the table.