// C# var q = from c in nw.Customers select new { ContactName = c.ContactName, TotalOrders = c.Orders.Sum(o => o.Order_Details.Sum( od => (double?)od.Quantity ...
A common SQL habit is to use SELECT * on a query, because it’s tedious to list all the columns you need. Plus, sometimes those columns may change over time, so why not just do things the easy way? But ...
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