Top Ten Questions and Answers on Data

1. So what happened to “Oslo”?

2. Why did Microsoft rename ADO.NET Data Services to WCF Data Services

3. Where does Microsoft stand on LINQ to SQL?

4. What’s happening to the “M” language? How do “M” and the Entity Data Model relate to each other? Which do I choose?

5. When does a developer use “M” vs. T-SQL? Should I use “M” rather than T-SQL to define the shape of my data?

6. What’s New in ADO.NET Entity Framework 4 and ADO.NET Data Services 4?

7. What is “Quadrant” and what does it do for me?

8. When will the SQL Server Modeling CTP ship?

9. How does the SQL Server Modeling CTP relate to .NET?

10. What is the Open Data Protocol (OData)?

Question #1: So what happened to “Oslo”?

Answer: The group of technologies collectively referred to as Microsoft code name “Oslo”, which have been released in several Community Technology Previews (CTPs), are alive and well, and Microsoft is still committed to their development. As of PDC 2009, the “Oslo” name has been retired. The technologies are being referred to as the SQL Server Modeling CTP and will be shipped with a future release of the SQL Server product.

Of the CTP’s component technologies, code name “Quadrant”, as a tool for viewing and editing data in a SQL Server database, has obvious affinity for SQL Server. The same equally obvious for what was called the “Repository” and pre-built domains, now called SQL Server Modeling Services. As for the code name “M” modeling language, it’s important to understand that SQL Server is a much broader product than just its core engine—it contains many other services and tools. The “M” language and its associated tools will become part of that collection and thus be available to software that uses the SQL Server product (in its broadest definition).

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