Can an entity exist in isolation in ER diagram?

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can an entity exist in isolation in ER diagram? When this entity has no relation ship with other entities (they have relationship with others) in the diagram?

Will this diagram be a valid ER diagram?

What I have tried:

I did not try any thing. This a knowledge based question.

Posted 20-Mar-18 18:57pm

Chandan_srivastava

Updated 21-Mar-18 12:13pm

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Richard Deeming · Accepted Answer · 2018-03-21T12:15:00

Solution 1

Yes:
erd - Is it OK to have an entity in an ER diagram without a relationship? - Database Administrators Stack Exchange[^]

Posted 21-Mar-18 12:15pm

Richard Deeming