Quiz Discussion

A ________ is a pictorial depiction of the schema of a database that shows the relations in the database, their attributes, and primary keys and foreign keys.

Course Name: SQL -Structured Query Language

  • 1]

    Schema diagram

  • 2]

    Relational algebra

  • 3]

    Database diagram

  • 4]

    Schema flow

Solution
No Solution Present Yet

Top 5 Similar Quiz - Based On AI&ML

Quiz Recommendation System API Link - https://fresherbell-quiz-api.herokuapp.com/fresherbell_quiz_api

# Quiz
1
Discuss

Department (dept name, building, budget) and Employee (employee_id, name, dept name, salary)
Here the dept_name attribute appears in both the relations. Here using common attributes in relation schema is one way of relating ___________ relations.

  • 1]

    Attributes of common

  • 2]

    Tuple of common

  • 3]

    Tuple of distinct

  • 4]

    Attributes of distinct

Solution
2
Discuss
SELECT name ____ instructor name, course id
FROM instructor, teaches
WHERE instructor.ID= teaches.ID;

Which keyword must be used here to rename the field name?

  • 1]

    From

  • 2]

    Rename

  • 3]

    As

  • 4]

    Join

Solution
3
Discuss

The _________ provides a set of operations that take one or more relations as input and return a relation as an output.

  • 1]

    Schematic representation

  • 2]

    Relational algebra

  • 3]

    Scheme diagram

  • 4]

    Relation flow

Solution
4
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
5
Discuss

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

  • 1]

    Query

  • 2]

    Relational

  • 3]

    Structural

  • 4]

    Compiler

Solution
6
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
7
Discuss

_____ operator is used for appending two strings.

  • 1]

    &

  • 2]

    %

  • 3]

    ||

  • 4]

    _

Solution
8
Discuss

Student(ID, name, dept name, tot_cred)
In this query which attributes form the primary key?

  • 1]

    Name

  • 2]

    Dept

  • 3]

    Tot_cred

  • 4]

    ID

Solution
9
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
10
Discuss

The term attribute refers to a ___________ of a table.

  • 1]

    Record

  • 2]

    Column

  • 3]

    Tuple

  • 4]

    Key

Solution
# Quiz