Relational databases are designed for multiple simultaneous users, and Microsoft SQL Server is no different. However, supporting multiple users requires some form of concurrency control, which in SQL Server's case means transaction isolation and locking. Read on to learn how SQL Server 2008 implements locking.
Latest SQL Server Articles
Using LINQ with Dynamic Where Clauses
Do you need to create Dynamic Where Clauses at runtime? No need to use string concatenation with SQL, LINQ is fully capable of performing the same task.
SQL Server Modeling Services with Microsoft Visual Studio 2010 Beta 2
Learn how to use SQL Modeling Services to hunt for interdependencies without having to access source code.
SELECT, INSERT, UPDATE with the SQL MERGE Statement
In today's column we'll demonstrate how and when to use the new TSQL MERGE statement and how this can be a helpful addition to your toolbox.
SQL Server 2008 Policy Management
Learn how to define policies and use them to better manage your SQL Server 2008 instances.
Writing UDFs for Firebird Embedded SQL Server
This article was written mainly for developers who use Firebird Embedded SQL Server in .Net framework applications and want to speed up or optimize DB queries. We will describe how to create your own native Firebird extension and show some approaches how to use it in managed code applications.
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MFC Integration with the Windows Transactional File System (TxF)
The Transactional File System (TxF), which allows access to an NTFS file system to be conducted in a transacted manner through extensions to the Windows SDK API. MFC 10, has been extended to support TxF and related technologies. This support allows existing MFC applications to be easily extended to support kernel transactions.
.NET Framework: Collections and Generics
The original release of the .NET Framework included collections as .NET was introduced to the Microsoft programming world. The .NET Framework 2.0 introduced generics to complement the System.Collections namespace and provide a more efficient and well performing option. Read on to learn more...

Working with Hashtables in .NET
There are millions of Namespaces in the .NET Framework. Coming from a VB 6 background, I was accustomed to arrays and arrays only. Luckily all has changed with .NET, in that the .NET Framework supports Collections, which as its name implies, is a collection of objects that you can store in a certain manner.
Implementing a WCF Message Contract
WCF implementations normally take two different approaches; a Document style or an API style. Document style implementations are more flexible and often easier to extend and version. Also, Document style or rather, Message Contract service implementations, work well between systems with a shared message assembly. Jeffrey Juday guides you through architecting a WCF Message Contract implementation.