我有一个应用程序,它当前使用以下存储过程从表中读取数据:
CREATE PROCEDURE [dbo].[GetBatchOfEmails]
@BatchSize INT
AS
BEGIN
SET NOCOUNT ON;
WITH ResultSet AS
(
SELECT TOP(@BatchSize) [To], [Subject], [MessageBodyText], [MessageBodyHtml],
[From], [ReplyTo], [DateCreated], [EmailId]
FROM SendMailQueue WITH (ROWLOCK, READPAST)
ORDER BY TableId
)
DELETE FROM ResultSet
OUTPUT deleted.[To], deleted.[Subject], deleted.MessageBodyHtml, deleted.MessageBodyText,
deleted.ReplyTo, deleted.[From], deleted.EmailId, deleted.DateCreated
END
如您所见,存储过程使用 ROWLOCK 和 READPAST 以便仅由一个连接安全地读取许多行(由 @BatchSize 控制)。读取后,行将被删除。
谁能指出我如何使用 NHibernate 完成同样的任务?