Modelling pivoted 3NF data using EF4.0 / LINQ?

It is nice idea to remove "database dependency" but obviously you have heavy data oriented application so you should consider some aspects. Even with EF it is still useful to use SQL for advanced queries - PIVOT is such example. Don't remove these queries or you will have to compute pivoted data directly in memory of your application = transfer all related data from db to application and compute aggregations for pivoting EF4 offers several ways to call tranditional SQL.

The way to go is probably encapsulating your queries into stored procedures and use them.

It is nice idea to remove "database dependency" but obviously you have heavy data oriented application so you should consider some aspects. Even with EF it is still useful to use SQL for advanced queries - PIVOT is such example. Don't remove these queries or you will have to compute pivoted data directly in memory of your application = transfer all related data from db to application and compute aggregations for pivoting.

EF4 offers several ways to call tranditional SQL. The way to go is probably encapsulating your queries into stored procedures and use them.

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