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Entity Relationship Diagram

CS3402 CityU of HK. 2. Overview. Database design is essentially to decide What data to store?How to store it?We must perform the design in a systematic way to achieve the maximum efficiency.For this purpose, we need a tool that allows us to visualize our current design in a concise but accurat

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Entity Relationship Diagram

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    1. Entity Relationship Diagram This presentation is prepared by Yufei Tao. http://www.cs.cityu.edu.hk/~taoyf Some examples are designed based on the slides provided by the textbook website.

    2. CS3402 CityU of HK 2 Overview Database design is essentially to decide What data to store? How to store it? We must perform the design in a systematic way to achieve the maximum efficiency. For this purpose, we need a tool that allows us to visualize our current design in a concise but accurate manner. The ER diagram is such a tool.

    3. CS3402 CityU of HK 3 An example ER diagram

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