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  1. In the following query, what does “person_id” stands for?
     CREATE TABLE Student
       (id SMALLINT UNSIGNED,
       fname VARCHAR(20),
       lname VARCHAR(20) ,
       CONSTRAINT pk_Student PRIMARY KEY (Student_id));
    1. Primary key
    2. Composite key
    3. Normal attribute of the table
    4. Super key
    5. None of these
Correct Option: D

Primary key is also termed as a super key.


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