Question

I have to tables, Table A is master, table B child.

What is the simplest LINQ2SQL Query to show all records from Table A exactly once
that have at least a child in table B?

Answer 1

Something like:

var AsWithBs = db.TableA.Where(x => x.Bs.Any())

or

var AsWithBs = from a in db.TableA
               where a.Bs.Any()
               select a;