Unbelievable duplicate in an Entity Framework Query

Question

My SQL query against a particular view returns me 3 different rows.

 select * from vwSummary
 where vidate >= \'10-15-2010\' and vidate <= \'10-15-2010\'
          


        

Answer 1

WORKAROUND: I changed my query like this and it works. But still I want to go back to the one shown above as I have to iterate again for more processing.

List p1 = (from v in db.vwSummary
                     where v.viDate >= firstVisibleDate && v.viDate <= lastVisibleDate
                     && v.IDNo == "0330"
                          select new 
{
a = v.a
b = v.b
}
).ToList();

I found the source of the problem from here and here. I guessed this should be an issue as I didnt have a very good key in my view as the view was more of a summary report. So I am sticking to the workaround I found in my other answer.

So if you find a similar issue, the problem is, add a proper primary key to your table or the view. If you cannot add one try something similar to the work around.