Question

So this is what I am trying to do:

select subscriber, count(subscriber)
from subscribers
where subscriber = subscribedTo
group by subscriber
having count(subscriber) > 1

Easy enough in SQL. I can’t figure out how to write this in LINQ. Anyone know how to go about this?

The table is just three cols, ID, subscriber and subscribedTo. I am trying to find duplicate rows where the subscriber == subscribedTo.

Answer 1

You may try this

var duplicatedSubscribers= 
    from s in subscribers 
    where s.subscribedTo == s.subscriber 
    group s by s.subscriber into g 
    where g.Count() > 1 
    select new { subscriber = g.Key, Count = g.Count() };

You may want to check the LINQ Samples in http://msdn.microsoft.com/en-us/vcsharp/aa336746.aspx