请参阅在SQL Server中锁定的介绍以及

在SQL 2008中插入/更新大量数据的***实践



您还可以使用交易初学者教程了解ADO.NET中的事务和TransactionScope

这称为并发问题。看看文章要理解。



http://blog.sqlauthority.com/2012/11/15/sql-server-concurrency-basics-guest-post-by-vinod-kumar/ [ ^ ]

This is called concurrency issue. look at the article to understand.

http://blog.sqlauthority.com/2012/11/15/sql-server-concurrency-basics-guest-post-by-vinod-kumar/[^]