1. LINQ for SQL
SQL Saturday May 2009
David Fekke

2. Who am I? David Fekke davidfekke@gmail.com Software Engineer at LPS
Reformed DBA/Sharepoint developer
JaxFusion.org

3. LINQ Language Integrated Query

4. ORM or Object Relational Mapper

5. .NET 3.5 Framework

6. SQL vs. LiNQ

7. Abstraction

8. SQL Server 2005/8

9. MySQL
PostgreSQL
Other RDBMS supported by Open Source

10. Oracle Provider Through DevArt

11. IQueriable Interface

12. Query Objects
Query XML
Query Databases

13. var myQuery = from p in db.people
where p.firstname == “David”
select p

14. LINQ makes use .NET 3.5 language features

15. C# 3.0 VB .NET 9.0

16. Lamda Expressions Anonymous Types Dynamic Types

17. Pros and Cons Visual Studio Generates Object code
No reason to create separate queries for each RDBMS
Auto parametrize variables
Use Stored Procedures
No hinting
careful about in memory querying
SQL Statements are auto-generated with the exception of Stored Procs