WebSep 18, 2024 · The advantage of UPDLOCK is that it allows you to read data (without blocking other transactions) and update the data later, while ensuring that the data has not been changed since the last time the data was read.When we use UPDLOCK to read the record, we can add an update lock to the fetched record, so that the locked record cannot … WebMerge statement deadlocking itself. create procedure usp_SaveCompanyUserData @companyId bigint, @userId bigint, @dataTable tt_CoUserdata readonly as begin set nocount, xact_abort on; merge CompanyUser with (holdlock) as r using ( select @companyId as CompanyId, @userId as UserId, MyKey, MyValue from @dataTable) as newData on …

C# NHibernate HiLo生成器生成重复Id

WebJun 4, 2007 · Open 2 separate query windows and issue the following statements again. DECLARE @queueid INT BEGIN TRAN TRAN1 SELECT TOP 1 @queueid = QUEUEID FROM DBO.QUEUE WITH (updlock) PRINT 'processing queueid # ' + CAST(@queueid AS VARCHAR) -- account for delay in processing time WAITFOR DELAY '00:00:10' DELETE FROM … Web程序能同时使用在oracle数据库和sql server 数据库的调查报告（1）1 编写目的由于客户所使用的数据库有时候为oralce，有时候为sql server，为了使程序能支持多个数据库，所以做此调查。 2 方案构想 标准sql语句语句转换技术适用于o ... help at home islip

SQL Merge Statement - Tutorial Gateway

WebOct 17, 2013 · MERGE dbo.MyTable WITH (HOLDLOCK) AS Target USING (VALUES (1), (2), (3)) AS Source (id) ON Target.id = Source.id WHEN MATCHED THEN UPDATE SET Target.id = Source.id WHEN NOT MATCHED THEN INSERT (id) VALUES (Source.id) WHEN NOT MATCHED BY SOURCE THEN DELETE; I expected this output, since my MERGE operation … WebMay 25, 2015 · Issue the select WITH (ROWLOCK, UPDLOCK, HOLDLOCK) which is a well-known lock hint sequence. It takes a lock that stabilized the data you are operating on. … lamb hill shelter