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many to many? about erd-editor HOT 2 CLOSED

MartinJohannessen avatar MartinJohannessen commented on July 18, 2024
many to many?

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Comments (2)

dineug avatar dineug commented on July 18, 2024

This tool is a physical database modeling tool.
N:M relationships are modeled as follows.
n_m

The relationship names like "zero one" refer to the states of the PK and the FK it's pointing to, not the PK state itself.

Exceptionally, the tool accommodates the Crow's foot notation for relationships.

If the relationship notation were purely physical, only the following notation would exist.
image

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MartinJohannessen avatar MartinJohannessen commented on July 18, 2024

Thanks so much! This tool forced me to figure out good practices.

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