Question

How do you get Linq to Sql to do pre and post actions beside just updating the records? I’m trying to setup a type 4 slowly changing dimension as described here.

tbl_emplyees

Id     Name     HourlyWage
--------------------------
1      Bob      30
2      Dan      20

tbl_emplyees_history

Id     CreatedDate      Name     HourlyWage
----------------------------------------------
1      4/2/2012         Bob      10
1      4/3/2012         Bob      20
2      2/2/2012         Dan      10

So, what I’d need to happen is, before any records are updated, they need to be copied into a history table.

I looked into stored procedures, but there seems to be a disconnect there. Linq is brilliant that it can submit modified records automagically but there doesn’t appear to be a way to pass all modified records into a stored procedure that achieves parity and allows pre and post actions with the same ease.

Answer 1

What “Disconnect” are you seeing with stored procs? LINQ to SQL has pretty good support for stored procs.

Alternatively, have you considered triggers for the auditing?