Question

I have a question about LINQ to SQL.

What is faster:

 public void CreateLocationImages(IEnumerable<LocationImage> list)
    {

        _db.LocationImages.InsertAllOnSubmit(list);

        _db.SubmitChanges();

    }

or

 public void CreateLocationImages(IEnumerable<LocationImage> list)
    {   
        foreach (LocationImage item in list)
        {
            _db.LocationImages.InsertOnSubmit(item);
        }
        _db.SubmitChanges();
    }

or maybe there is no difference ?

Answer 1

Since in both cases you are calling SubmitChanges only once. Both of the code would result in same performance. (if there is going to be any performance different that should be negligible) If your 2nd code segment has _db.SubmitChanges(); inside the for loop then it would be a separate connection and insert statement in the db.