batch method
Creates a batch, used for performing multiple operation in a single atomic operation.
A batch can either be committed atomically with Batch.commit, or non-
atomically by calling Batch.apply. For details on the two methods, see
their documentation.
In general, it is recommended to finish batches with Batch.commit.
When committed with Batch.commit, sqflite will manage a transaction to
execute statements in the batch. If this batch method has been called on
a Transaction, committing the batch is deferred to when the transaction
completes (but Batch.apply or Batch.commit still need to be called).
Implementation
@override
sqlite.Batch batch() => throw _dbNotEnabled();