Entity Relationship Diagrams
20:32
YouTubeDecomplexify
Entity Relationship Diagrams
An easy-to-follow tutorial on Entity Relationship Diagrams (ERDs). In this video, we explore how ERDs help to clarify crucial aspects of what’s going on in a database design. Using a range of examples, we go step-by-step through the process of taking a set of information requirements and turning it into an ERD. 0:00 Introduction 0:57 ...
165.5K viewsDec 17, 2024
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Activity - 1:Why is the ER model considered a top-down approach? Describe the four basic componentsof the ER model.Activity - 2:The ER model uses a number of notations and tags to represent different concepts. Outlinehow the basic ER components are represented in an ER diagram.Activity - 3:Describe what attributes represent in an ER model and provide examples of simple,composite, single-value, multi-value, and derived attributes.
Activity - 1:Why is the ER model considered a top-down approach? Describe the four basic componentsof the ER model.Activity - 2:The ER model uses a number of notations and tags to represent different concepts. Outlinehow the basic ER components are represented in an ER diagram.Activity - 3:Describe what attributes represent in an ER model and provide examples of simple,composite, single-value, multi-value, and derived attributes.
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