Mapping ER Diagrams to Database Schema is the second step in database design. Drawing ER diagram is the first step.Table of Contents ToggleMapping a Composite attributeMapping a Derived attributeMapping a Multi valued attributeMapping Descriptive attributeMapping 1:1 RelationshipMapping 1:M RelationshipMapping M:N RelationshipMapping Weak EntityMapping a Composite attributeMapping a Derived attributeMapping a Multi valued attributeMapping Descriptive attributeMapping 1:1 RelationshipMapping 1:M RelationshipMapping M:N RelationshipMapping Weak Entity Category: Database Basics & ER DiagramsBy Related postsMultivalued attributeNormalization LevelsFunctional dependenciesIntroduction to NormalizationER Diagram ExamplesSteps to Design an ER Diagram