Quiz Discussion

Using which language can a user request information from a database?

Course Name: SQL -Structured Query Language

  • 1]

    Query

  • 2]

    Relational

  • 3]

    Structural

  • 4]

    Compiler

Solution
No Solution Present Yet

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# Quiz
1
Discuss

For each attribute of a relation, there is a set of permitted values, called the ________ of that attribute.

  • 1]

    Domain

  • 2]

    Relation

  • 3]

    Set

  • 4]

    Schema

Solution
2
Discuss
SELECT name
FROM instructor
WHERE salary <= 100000 AND salary >= 90000;

This query can be replaced by which of the following ?

  • 1]
    SELECT name
    FROM instructor
    WHERE salary BETWEEN 90000 AND 100000;

     

  • 2]
    SELECT name
    FROM employee
    WHERE salary <= 90000 AND salary>=100000;

     

  • 3]
    SELECT name
    FROM employee
    WHERE salary BETWEEN 90000 AND 100000;

     

  • 4]
    SELECT name
    FROM instructor
    WHERE salary BETWEEN 100000 AND 90000;

     

Solution
3
Discuss

The tuples of the relations can be of ________ order.

  • 1]

    Any

  • 2]

    Same

  • 3]

    Sorted

  • 4]

    Constant

Solution
4
Discuss

The ________ clause is used to list the attributes desired in the result of a query.

  • 1]

    Where

  • 2]

    Select

  • 3]

    From

  • 4]

    Distinct

Solution
5
Discuss

The result which the operation contains all pairs of tuples from the two relations, regardless of whether their attribute values match.

  • 1]

    Join

  • 2]

    Cartesian product

  • 3]

    Intersection

  • 4]

    Set difference

Solution
6
Discuss
SELECT *
FROM instructor
ORDER BY salary ____, name ___;

To display the salary from greater to smaller and name in ascending order which of the following options should be used?

  • 1]

    Ascending, Descending

  • 2]

    Asc, Desc

  • 3]

    Desc, Asc

  • 4]

    Descending, Ascending

Solution
7
Discuss

The term attribute refers to a ___________ of a table.

  • 1]

    Record

  • 2]

    Column

  • 3]

    Tuple

  • 4]

    Key

Solution
8
Discuss
SELECT name
FROM instructor
WHERE dept name = ’Physics’
ORDER BY name;

By default, the order by clause lists items in ______ order.

  • 1]

    Descending

  • 2]

    Any

  • 3]

    Same

  • 4]

    Ascending

Solution
9
Discuss

A domain is atomic if elements of the domain are considered to be ____________ units.

  • 1]

    Different

  • 2]

    Indivisbile

  • 3]

    Constant

  • 4]

    Divisible

Solution
10
Discuss

Course(course_id,sec_id,semester)

Here the course_id,sec_id and semester are __________ and course is a _________

  • 1]

    Relations, Attribute

  • 2]

    Attributes, Relation

  • 3]

    Tuple, Relation

  • 4]

    Tuple, Attributes

Solution
# Quiz