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。

youdao

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。

youdao

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。

youdao