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    Question

    What is referential integrity?

    A Ensuring that all columns are non-null Correct Answer Incorrect Answer
    B Ensuring that foreign keys correctly reference primary keys in other tables Correct Answer Incorrect Answer
    C Ensuring that tables have unique names Correct Answer Incorrect Answer
    D Ensuring that all data is encrypted Correct Answer Incorrect Answer
    E Ensuring data is stored in JSON format Correct Answer Incorrect Answer

    Solution

    Referential integrity prevents orphan records and maintains consistency between related tables.

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