Question: Q: Explain what you mean by queries with circular references, or multiple between tables and the inconveniences they can bring. Exemplify with database with 4

Q: Explain what you mean by queries with circular references, or multiple between tables and the inconveniences they can bring. Exemplify with database with 4 tables:

A (a -> _)

B (b -> _)

C (c-> b, _)

D (d-> a, b, c, _)

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