Understanding SQL Concepts and Database

Quiz
•
Computers
•
11th Grade
•
Easy

Joseph Ighosiohwonoja
Used 5+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
During a computer science class, Scarlett asked her classmates, "What does SQL stand for?"
Structured Query List
Simple Query Language
Structured Query Language
Structured Query Logic
Answer explanation
SQL stands for Structured Query Language, which is the standard language used for managing and manipulating databases. The other options do not accurately represent the full name of SQL.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a database project for their class, Aria and Daniel are discussing the purpose of Data Definition Language (DDL) in SQL. What do they conclude?
To perform calculations on data.
The purpose of DDL in SQL is to define and manage the structure of database objects.
To manage user permissions in the database.
To retrieve data from the database.
Answer explanation
The correct choice highlights that DDL (Data Definition Language) in SQL is specifically used to define and manage the structure of database objects, such as tables and schemas, which is essential for database design.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Emma is trying to organize her school database. Which SQL statement should she use to create a new table for student records?
ADD TABLE
CREATE TABLE
INSERT INTO
MODIFY TABLE
Answer explanation
The correct SQL statement to create a new table is 'CREATE TABLE'. The other options, such as 'ADD TABLE' and 'MODIFY TABLE', are not valid SQL commands for this purpose.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a database management class, William is learning about SQL commands. He comes across the ALTER TABLE statement and wonders what its function is.
To create a new table in a database.
To retrieve data from a table in a database.
To modify the structure of an existing table in a database.
To delete an existing table from a database.
Answer explanation
The ALTER TABLE statement is used to modify the structure of an existing table in a database, such as adding or deleting columns, or changing data types. This distinguishes it from creating, retrieving, or deleting tables.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a school database, define a primary key for student records.
A primary key is a type of foreign key in a database.
A primary key is a unique identifier for a record in a database table.
A primary key can contain duplicate values in a table.
A primary key is used to store large amounts of data in a database.
Answer explanation
A primary key uniquely identifies each record in a database table, ensuring that no two records can have the same key value. This is essential for maintaining data integrity and enabling efficient data retrieval.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a school database, what is a foreign key?
A foreign key is a field in a table that links to the primary key of another table.
A foreign key is a unique identifier for a table.
A foreign key is a type of primary key.
A foreign key is a field that cannot be null.
Answer explanation
A foreign key establishes a relationship between two tables by linking a field in one table to the primary key of another. This is crucial for maintaining referential integrity in a database.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In a school database, how does a foreign key enforce referential integrity when linking students to their classes?
A foreign key can reference multiple primary keys at once.
A foreign key allows any value in the foreign key column without restrictions.
A foreign key enforces referential integrity by ensuring that every value in the foreign key column corresponds to a valid value in the referenced primary key column.
A foreign key is used to delete records from the database without any checks.
Answer explanation
A foreign key enforces referential integrity by ensuring that every value in the foreign key column corresponds to a valid value in the referenced primary key column, preventing orphaned records.
Create a free account and access millions of resources
Similar Resources on Wayground
24 questions
L2 ICT U1 Database Quiz

Quiz
•
11th Grade
22 questions
Y6 Unit111

Quiz
•
6th Grade - University
15 questions
Learning SQL

Quiz
•
11th - 12th Grade
15 questions
A-Level Comp Sci 9618 Databases

Quiz
•
9th - 12th Grade
15 questions
Databases

Quiz
•
10th Grade - University
20 questions
Key Applications 1

Quiz
•
9th - 12th Grade
21 questions
CSP Vocab Practice 2

Quiz
•
10th - 12th Grade
17 questions
Database Knowledge Check

Quiz
•
9th - 12th Grade
Popular Resources on Wayground
10 questions
Lab Safety Procedures and Guidelines

Interactive video
•
6th - 10th Grade
10 questions
Nouns, nouns, nouns

Quiz
•
3rd Grade
10 questions
9/11 Experience and Reflections

Interactive video
•
10th - 12th Grade
25 questions
Multiplication Facts

Quiz
•
5th Grade
11 questions
All about me

Quiz
•
Professional Development
22 questions
Adding Integers

Quiz
•
6th Grade
15 questions
Subtracting Integers

Quiz
•
7th Grade
9 questions
Tips & Tricks

Lesson
•
6th - 8th Grade
Discover more resources for Computers
20 questions
Digital Citizenship

Quiz
•
8th - 12th Grade
35 questions
Computer Baseline Examination 2025-26

Quiz
•
9th - 12th Grade
13 questions
Problem Solving Process

Quiz
•
9th - 12th Grade
10 questions
Understanding Algorithms with Pseudocode and Flowcharts

Interactive video
•
9th - 12th Grade
19 questions
AP CSP Unit 1 Review (code.org)

Quiz
•
10th - 12th Grade