title: all tables form sql database not being mapped to entity framwork .edmx
body: <p>i have come across a special situation , i am generating an entity framework to map all my tables for an .net  project , even all tables are being shown i checked them all of them before mapping ,Out of 6 tables 2 were mapped and 4 were not,What could be the reason if there is some kind of security or something else.</p>
  
  <p>Tried with update model from database, selecting table again and adding them still ,it dint worked.</p>