using { Currency, managed, sap } from '@sap/cds/common'; namespace sap.capire.bookshop; entity Books : managed { key ID : Integer; title : localized String(111) @mandatory; descr : localized String(1111); author : Association to Authors @mandatory; genre : Association to Genres; stock : Integer; price : Decimal; currency : Currency; image : LargeBinary @Core.MediaType: 'image/png'; } entity Authors : managed { key ID : Integer; name : String(111) @mandatory; dateOfBirth : Date; dateOfDeath : Date; placeOfBirth : String; placeOfDeath : String; books : Association to many Books on books.author = $self; } /** Hierarchically organized Code List for Genres */ entity Genres : sap.common.CodeList { key ID : Integer; parent : Association to Genres; children : Composition of many Genres on children.parent = $self; }