TAILIEUCHUNG - Microsoft SQL Server 2005 Developer’s Guide- Part 20

Microsoft SQL Server 2005 Developer’s Guide- P20:SQL Server 2005 is a feature-rich release that provides a host of new tools and technologies for the database developer. This book is written to help database developers and DBAs become productive immediately with the new features and capabilities found in SQL Server 2005. | Developing Database Applications with IN THIS CHAPTER The Architecture Namespaces .NET Data Providers Core Classes in the Namespace Using the .NET Framework Data Provider for SQL Server Using the SqlConnection Object Using the SqlCommand Object Using the SqlDependency Object Using the SqlDataReader Object Using the SqlDataAdapter Object Copyright 2006 by The McGraw-Hill Companies. Click here for terms of use. 169 170 Microsoft SQL Server 2005 Developer s Guide In this chapter you will see how to develop SQL Server database applications using Visual Basic and . The first part of the chapter provides you with an overview of the data access technology. The second part of this chapter introduces you to the different namespaces and gives you an overall understanding of the functions of the different classes that compose the architecture. Finally the last section of this chapter covers the classes that are used by the DataSet object. In this part of the chapter you ll get an understanding of DataTable DataColumn DataRow and other classes used by the new DataSets. The Architecture At its essence is data access middleware that enables the development of database applications. builds on the platform provided by the .NET Framework. is built using managed code from the Microsoft .NET Framework which means that it enjoys the benefits of the robust .NET execution time environment. Designed primarily to address the issues of Web and distributed applications consists of a set of classes or namespaces within the .NET Framework that provide data access and management capabilities to .NET applications. As a data access framework has been primarily designed to allow it to work in the disconnected data access model that is required by n-tiered Web-based applications. ADO the direct predecessor of was primarily designed to accommodate a .

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