关键词 :心理账户 ;交易效用 ;预算 ;自我控制 ;账户平衡 [gap=12386]Key words: mental accounting; transaction utility; budgeting; self-control; account balance
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Transaction utility theory 交易效用理论
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。
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。
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.
因为获得的锁不会跨事务边界存在,所以import工具将失去它的IX表锁,并且必须在每次提交之后请求另一个锁。
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