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mysql - Which one is ER diagram - Stack Overflow

Your first diagram is a proper ER diagram, using the concepts and notation developed by Peter Chen in his paper The Entity-Relationship Model - Toward a Unified View of Data.

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When to use Associative entities? - Stack Overflow

And when drawing the ER diagram (in Chen notation), the relationship is symbolized by a diamond shape. But there is a separate symbol for associative entities, which symbolizes a many to many relationship between two ...

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sql - Export ER diagrams from SSMS - Stack Overflow

I have some ER diagrams created in the development server. I want to export this as PDF and share with my analyst for further usage. The diagram needs to be in PDF format alone since the analyst do...

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One-to many relationships in ER diagram - Stack Overflow

In ER diagrams when the relationship is denoted the arrows are not used. Some instructors use this arrow when they want to decide the cardinalities but that is just to get the cardinality (1:1, 1:M and N:M) I have att...

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Displaying inheritance on ER Diagrams? - Stack Overflow

You have tagged your question with the UML tag and with the class-diagram tag. Could you please explain why? You have an ER diagram with crow's foot notation, which is not compatible with UML or class diagrams.