
SQL Quiz
Quiz
•
Other
•
University
•
Practice Problem
•
Medium
Casey Gordon
Used 1+ times
FREE Resource
Enhance your content in a minute
19 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In an entity-relationship diagram, what is the purpose of a weak entity?
To represent an entity that does not have its own unique identifier.
To represent an entity that has a one-to-one relationship with another entity.
To represent an entity that has a many-to-many relationship with another entity.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the CASCADE DELETE constraint in SQL?
To automatically delete all related records when a record is deleted.
To prevent the deletion of a record if it is referenced by other records.
To update the foreign key values when a record is deleted.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the EXISTS operator in SQL?
To check if a subquery returns any rows.
To perform calculations on the retrieved data.
To retrieve data based on the result of another query.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can a self-referencing relationship be implemented in a relational database?
By creating a separate table that includes the primary key of the entity.
By adding a foreign key column in the entity's table that references its own primary key.
By duplicating the data in the entity's table.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the HAVING clause in SQL?
To filter rows based on a specific condition.
To sort rows in ascending or descending order.
To filter groups based on a specific condition.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of the TRUNCATE TABLE command in SQL?
To modify the structure of an existing table.
To insert new rows into a table.
To delete all rows from a table.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can the JOIN operation be used in SQL?
To combine rows from two or more tables based on a related column between them.
To update existing data in a table.
To delete rows from a table.
Access all questions and much more by creating a free account
Create resources
Host any resource
Get auto-graded reports

Continue with Google

Continue with Email

Continue with Classlink

Continue with Clever
or continue with

Microsoft
%20(1).png)
Apple
Others
Already have an account?
Similar Resources on Wayground
15 questions
CHN 1 EXPANDED PROGRAM ON IMMUNIZATION
Quiz
•
7th Grade - University
20 questions
คำถาม Tourism Quiz ช่วงที่ 1
Quiz
•
University
15 questions
Trivia Day
Quiz
•
9th Grade - University
16 questions
Qualitative research
Quiz
•
University
15 questions
Once Upon a Time Season 1
Quiz
•
9th Grade - University
16 questions
Fortnite
Quiz
•
KG - Professional Dev...
20 questions
PLANTS AND THEIR ENVIRONMENT
Quiz
•
University
20 questions
Movies & Anime
Quiz
•
University
Popular Resources on Wayground
15 questions
Fractions on a Number Line
Quiz
•
3rd Grade
20 questions
Equivalent Fractions
Quiz
•
3rd Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
22 questions
fractions
Quiz
•
3rd Grade
20 questions
Main Idea and Details
Quiz
•
5th Grade
20 questions
Context Clues
Quiz
•
6th Grade
15 questions
Equivalent Fractions
Quiz
•
4th Grade
20 questions
Figurative Language Review
Quiz
•
6th Grade
Discover more resources for Other
12 questions
IREAD Week 4 - Review
Quiz
•
3rd Grade - University
23 questions
Subject Verb Agreement
Quiz
•
9th Grade - University
7 questions
Force and Motion
Interactive video
•
4th Grade - University
7 questions
Renewable and Nonrenewable Resources
Interactive video
•
4th Grade - University
5 questions
Poetry Interpretation
Interactive video
•
4th Grade - University
19 questions
Black History Month Trivia
Quiz
•
6th Grade - Professio...
15 questions
Review1
Quiz
•
University
15 questions
Pre1
Quiz
•
University
