If the MDB locks resources transactionally (for example, it may lock a database row), these resources will not become unlocked until the end of the batch.
如果MD b以事务的方式锁定资源(例如,它可以锁定数据库行),则在批结束之前,这些资源将保持锁定。
For example, a lock snapshot captures and returns database lock information.
例如,锁快照捕获并返回数据库锁信息。
But a write lock in the database can't be held indefinitely.
但不能在数据库中无限地保持写锁。
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