Then if a system or media failure occurs, you can use the transaction log and a third-party backup utility to recover your database.
如果系统或媒体发生失败，您可以使用事务日志和第三方备份实用工具恢复数据库。
2
Now look at the commit time of above transaction using onlog utility as shown below.
现在使用onlog实用工具查看以上事务的提交时间，如下所示。
3
Because the acquired lock does not persist across transaction boundaries, the import utility loses its IX table lock and must request another lock after each commit.