New Register here for RBI, SEBI & NABARD strategy workshop! April 9 at 7 PM

    Question

    What is a primary key in a relational

    database?
    A A column that uniquely identifies each row in a table Correct Answer Incorrect Answer
    B A column that is used for sorting data in a table Correct Answer Incorrect Answer
    C A column that contains only numeric data Correct Answer Incorrect Answer
    D A column that is used for indexing data in a table Correct Answer Incorrect Answer

    Solution

    A column that uniquely identifies each row in a table

    Practice Next

    Relevant for Exams: