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NETB299 Основи на базите от данни

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How many rows will return the query?

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Which of the following statements explains the given fragment of ER diagram?

ER6

An instance of data entity A is related to many instances of data entity B, and an instance of B is related to many instances of A.

Every instance of data entity A is related to many instances of data entity B, and every instance of B is related to one instance of A.

100%

Every instance of data entity A is related to many instances of data entity B, and an instance of B is related to at-most one instance of A.

Every instance of data entity A is related to many instances of data entity B, and every instance of B is related to many instances of A.

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How many rows will return the query?

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How many rows will return the query?

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