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    Question

    In a relational database, a foreign key is used

    to:
    A Ensure data integrity Correct Answer Incorrect Answer
    B Create a link between tables Correct Answer Incorrect Answer
    C Establish a primary key Correct Answer Incorrect Answer
    D Perform complex queries Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    A foreign key is used to create a link between two tables by referencing the primary key of another table, establishing a relationship.

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