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  • Question 1
    5 / -1

    What is meant by the following relational algebra statement : STUDENT × COURSE?

  • Question 2
    5 / -1

    The _______ operation selects certain columns from a table and discards the other columns.

  • Question 3
    5 / -1

    Relational Algebra is a ________ language.

  • Question 4
    5 / -1

    Consider the following relation schema of students.

    STUDENT (Rollno, Name, DOB, Marks, Gender) Which of the given query is equivalent to this query in English? “Find the tuples of student having marks above 80”. 

  • Question 5
    5 / -1

    Write the name of the relational algebra operation as per the given order of their notation.

    Π̅, X, σ

  • Question 6
    5 / -1

    Joining a table with itself is called

  • Question 7
    5 / -1

    Which of the following represents the "inner' join operation?

  • Question 8
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    Which of the following category of join returns all records when there is a match in either left or right table?

  • Question 9
    5 / -1

    Relation algebra query that finds customer's who have a balance more than 1000, from deposit table is:

  • Question 10
    5 / -1

    What is the number of rows returned for the given Relation R if query passed is “∏Name(R)”?

    Name

    X

    X

    X

    Y

    Z

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