Data-Structure Diagrams Schema representing the design of a network database. A data-structure diagram consists of two basic components: Boxes,which correspond to record types. Lines,which correspond to links. Specifies the overall logical structure of the database. Database System Concepts,5th Ed. A.3 ©Silberschat乜，Korth and SudarshanDatabase System Concepts, 5 A.3 ©Silberschatz, Korth and Sudarshan th Ed. Data-Structure Diagrams Schema representing the design of a network database. A data-structure diagram consists of two basic components: Boxes, which correspond to record types. Lines, which correspond to links. Specifies the overall logical structure of the database