LINQ and LINQ to SQL Webcast
Marc Schweigert of Microsoft's Public Sector DPE (Developer and Platform Evangelism) Team has produced a 90-minute Webcast entitled Introduction to LINQ + LINQ to SQL. The presentation aired at 2:00 PM EST on 4/24/2007, immediately after the VB team's Orcas Overview Webcast and the day before its LINQ Overview presentation. Registration is required to view the archived Webcast.
Following is the abstract:
Modern applications operate on data in several different forms: Relational tables, XML documents, and in-memory objects. Each of these domains can have profound differences in semantics, data types, and capabilities, and much of the complexity in today’s applications is the result of these mismatches. In this talk, we will explain how the Orcas release of Visual Studio aims to unify the programming models through LINQ capabilities in C#, a strongly typed data access framework, and an innovative Application Programming Interface (API) for manipulating and querying XML.
Database-centric applications have traditionally had to rely on two distinct programming languages: one for the database and one for the application. In the second part of this talk we will introduce LINQ to SQL, a component of the LINQ project designed to help integrate relational data and queries with C# and Visual Basic. LINQ to SQL enables developers to express queries and updates in terms of their local programming language without sacrificing the server-side execution model of today’s high-performance SQL-based approaches. Using these advances, database queries that previously were stored as opaque strings now benefit from static type checking, CLR metadata, design-time type inference, and of course IntelliSense. LINQ to SQL also supports a rich update capability that lets you save changes to an object graph back to the database using optimistic concurrency or transactions.
LINQ to SQL receives about the last 45 minutes of the presentation, most of which uses C#.
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