avocado> db.names.all();
{ "age" : 29, "name" : "Meier", "first_name" : "Egon", "_id" : "144723:2001393" }
{ "age" : 51, "name" : "Meier", "first_name" : "Meier", "_id" : "144723:2066929" }
{ "age" : 30, "name" : "Meier", "first_name" : "Hugo", "_id" : "144723:1935857" }