is not ``None``,
new transactions are implicitly opened before
:meth:`~Cursor.execute` and :meth:`~Cursor.executemany` executes
-``INSERT``, ``UPDATE``, ``DELETE``, or ``REPLACE`` statements.
+``INSERT``, ``UPDATE``, ``DELETE``, or ``REPLACE`` statements;
+for other statements, no implicit transaction handling is performed.
Use the :meth:`~Connection.commit` and :meth:`~Connection.rollback` methods
to respectively commit and roll back pending transactions.
You can choose the underlying `SQLite transaction behaviour`_ —