c# - Entity Framework multiple counts with a single query

Question

Sorry if this has been asked, but how can I improve the following with a single call to the database?

var statsModel = new
{
     Total = _db.Messages.Count(),
     Approved = _db.Messages.Count(x => x.Approved),
     Rejected = _db.Messages.Count(x => !x.Approved),
};

Answer 1

This might help:

var statsModel =(
        from message in _db.Messages
        group message by 1 into g
        select new
        {
            Total = g.Count(),
            Approved =g.Count (x =>x.Approved),
            Rejected =g.Count (x =>!x.Approved)
        }
    ).FirstOrDefault();