1. CRUD is crud. The fundamental activities of Create, Read, Update and Delete are fundamentally wrong-headed. Updates to data should never be allowed, because they destroy information and Deletes should never be allowed for the same reason. When data changes the database should just add another record and note (by any mechanism that works) the previous value for that record. If the database gets too large then data should be archived from it. The right set of activities is thus CRA, Create, Read, Archive.