
Understanding MySQL: Queries and Joins
Authored by Roger Holden
Computers
University
Used 1+ times

AI Actions
Add similar questions
Adjust reading levels
Convert to real-world scenario
Translate activity
More...
Content View
Student View
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary purpose of normalisation in a relational database?
To increase the size of the database
To reduce data redundancy and improve data integrity
To make the database more complex
To decrease the speed of data retrieval
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a type of join in SQL?
INNER JOIN
OUTER JOIN
LEFT JOIN
All of the above
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a relational database, what does a foreign key do?
Uniquely identifies each record in a table
Establishes a relationship between two tables
Increases the speed of queries
Stores large binary objects
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which SQL clause is used to filter records?
SELECT
WHERE
ORDER BY
GROUP BY
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which normal form is achieved when a table is free of transitive dependencies?
First Normal Form (1NF)
Second Normal Form (2NF)
Third Normal Form (3NF)
Boyce-Codd Normal Form (BCNF)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does the SQL command `JOIN` do?
Combines rows from two or more tables based on a related column
Deletes rows from a table
Updates existing records in a table
Inserts new records into a table
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is NOT a benefit of normalisation?
Improved data integrity
Reduced data redundancy
Increased complexity of queries
Easier maintenance
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
14 questions
Input, output and storage de
Quiz
•
8th Grade - Professio...
10 questions
Living in the IT Era
Quiz
•
University
10 questions
It's App to You!
Quiz
•
University
12 questions
ICT450-TOPIC 1
Quiz
•
University
11 questions
Video Watermaking
Quiz
•
University
10 questions
NETIQUETTE AND DIGITAL FOOTPRINT
Quiz
•
University
10 questions
JSPS Competition Hackathon - Scratch Language - Grade 1
Quiz
•
2nd Grade - University
10 questions
Microcontroller
Quiz
•
11th Grade - University
Popular Resources on Wayground
8 questions
Spartan Way - Classroom Responsible
Quiz
•
9th - 12th Grade
15 questions
Fractions on a Number Line
Quiz
•
3rd Grade
14 questions
Boundaries & Healthy Relationships
Lesson
•
6th - 8th Grade
20 questions
Equivalent Fractions
Quiz
•
3rd Grade
3 questions
Integrity and Your Health
Lesson
•
6th - 8th Grade
25 questions
Multiplication Facts
Quiz
•
5th Grade
9 questions
FOREST Perception
Lesson
•
KG
20 questions
Main Idea and Details
Quiz
•
5th Grade
Discover more resources for Computers
20 questions
Disney Trivia
Quiz
•
University
7 questions
Fragments, Run-ons, and Complete Sentences
Interactive video
•
4th Grade - University
7 questions
Renewable and Nonrenewable Resources
Interactive video
•
4th Grade - University
10 questions
DNA Structure and Replication: Crash Course Biology
Interactive video
•
11th Grade - University
7 questions
Force and Motion
Interactive video
•
4th Grade - University
20 questions
Implicit vs. Explicit
Quiz
•
6th Grade - University
14 questions
Ch.3_TEACHER-led
Quiz
•
University
7 questions
Comparing Fractions
Interactive video
•
1st Grade - University