The concept: “Many to Many” relationships Many things in this life have a one to one relationship: a man has a wife ( Utah excepted ), a car has an owner, a dog it’s day. Many other things in life have a one to many relationship: a policy covers many people, a manager has direct reports, etc. But some things have a many to many relationship. People have surnames (“John Smith” is a Smith and so is “Jane Smith”;conversely, among the Smith clan there might be multiple Johns, 42 Janes, and 22 Larry’s ).
It is of this many to many relationship I will write and whose code I seek to share.