September 2003
Intermediate to advanced
624 pages
14h 27m
English
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Chapter 1. Connecting to Data
Introduction
This chapter describes how to connect to a variety of data sources from ADO.NET; how to handle security-related issues including storing connection strings and using different authentication methods; and how to set up, monitor, and optimize connection pooling.
ADO.NET Overview
ADO.NET is designed to support data access requirements of loosely coupled n-tier application architectures including web services. ADO.NET can access a variety of different data sources, including relational databases such as Microsoft SQL Server, Oracle, and Microsoft Access, as well as other data sources such as Microsoft Excel, Outlook, and text files.
A .NET data provider is used to connect to a data source, execute commands, and retrieve results. The .NET Framework ships with four .NET-managed data providers: Microsoft SQL Server, Oracle, OLE DB, and ODBC.
Other providers are also available—for example, Oracle has developed its own .NET data provider for Oracle. Data providers also exist for databases such as Sybase and MySQL. Database-specific providers usually access the underlying data store directly and offer the best performance, broadest functionality, and support for database-specific features. Since a data provider needs only to implement a set of standard interfaces, the capabilities and performance of data providers for the same data source can differ significantly.
In addition to database-specific providers, the OLE DB .NET data provider allows access ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.