Higher; Design Relationships and entity relationship diagrams. Designing queries and establishing a data dictionary are important and attributes and relationships should be clearly defined. Part ...

The data modeling course entails all the important points related to conceptual, logical, and physical approaches. You will learn to draw Entity-Relationship Diagrams (ERDs) and the normalization ...

Occasionally one sees an entity-relationship diagram (ERD) having an unusual characteristic. The unusual element is an entity (or more than one) that seems to have a relationship with every other ...