在实体框架中使用选择锁定表 [英] Locking a table with a select in Entity Framework

问题描述

我需要做这样的事情

select * from myTable with (xlock,holdlock)

使用实体框架.这可能吗?我已经打开了Serializable隔离级别的TransactionScope，但是我的选择没有锁定表.我希望他们锁定，直到完成交易范围.

using Entity Framework. Is this possible? I've opened a TransactionScope with the Serializable isolation level but my selects are not locking the tables. I'd like them to lock until I complete the transaction scope.

推荐答案

可以，但是您必须发出使用LINQ时无法添加锁定提示的SQL(据我所知):

It is possible but you have to issue the SQL you can't add the locking hint when using LINQ (as far as I know):

ObjectContext.ExecuteStoreCommand(
                string.Format("select 1 from [{0}] with (tablockx, holdlock) where 0 = 1",
                              tableName));

如果您在交易范围内执行此操作，那么您将持有该锁，直到完成交易为止.

If you do that in a transaction scope then you'll hold the lock until you complete the transaction.

更多信息可以在这里找到:

A bit more information can be found here:

http://peplowdown.wordpress.com/2010/07/18/locking-across-servers-table-locks-with-entity-framework/

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