10.2 Entity-Relationship Diagram

Draw an ER Diagram in Chen-like model, for a library for an entity called library holdings. Include as attributes the call number, name of book, author(s), location in library. Add a defining predicate of holding type and draw in the disjoint, partial specializations of journals and reference books, with hournals having the attribute renewal date and reference books the attribute checkout constraints. Map this to a relational database and show some sample data.