'Several entities' presentation slideshows

Prof. Sin-Min Lee

Final Revision 3. CS 157B Lecture 23. Prof. Sin-Min Lee. Modeling. A database can be modeled as: a collection of entities, relationship among entities. An entity is an object that exists and is distinguishable from other objects. Example: specific person, company, event, plant

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Ethics Today

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600 views • 42 slides

Entity-Relationship Model

Entity-Relationship Model. Using High-Level Conceptual Data Models for Database Design Entity Types, Sets, Attributes and Keys Relationship Types, Sets, Roles and Constraints ER Diagrams, Naming and Design Issues Mapping Constraints Keys E-R Diagram Extended E-R Features

976 views • 39 slides

HEL Conservation Compliance

728 views • 24 slides