>>>>Thanks a lot. I plan to finish watching the videos and then I look at the article.
>>>
>>>How does L2S do relationships?
>>
>>If the PK/FK defined in the database, it's done automatically by the designer.
>>
>>I finished the Introduction course and right now was finishing the second (more in depth course) about what lambda expression is, what are Extension methods, etc. I have much better understanding now - continue to learn.
>
>Do you have the need to have a database-agnostic DAL? That seemed to be all the rage a year or two ago, until L2S and EF came along.

Hi,
EF is also potentially DB agnostic (in that same way the ADO.NET is - the DB supplier needs to make a provider available)
List of available EF providers here: http://www.microsoft.com/sqlserver/2008/en/us/ado-net-entity.aspx
(admittedly not as extensive as ADO.NET providers - but most of the common ones seem to be there....)
Best,
Viv