
Understanding Database Views
Interactive Video
•
Computers
•
9th - 10th Grade
•
Practice Problem
•
Hard
Jennifer Brown
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary benefit of using views in a database?
They reduce the need for database backups.
They allow for more complex queries.
They make it easier to search and manage data.
They increase the size of the database.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can sensitive data be protected when creating a view?
By renaming the sensitive columns.
By creating a backup of the table.
By excluding sensitive columns from the view.
By encrypting the entire table.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What SQL command is used to combine results from two SELECT queries?
JOIN
MERGE
INTERSECT
UNION
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you ensure unique IDs when combining data from two tables?
By prefixing IDs with a unique letter.
By using a random number generator.
By using the same ID for all entries.
By deleting duplicate IDs.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a CROSS JOIN in SQL?
To filter rows based on a condition.
To combine rows from two tables without a condition.
To update rows in a table.
To delete rows from a table.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What function can replace null values with a default value in SQL?
COALESCE
NVL
NULLIF
ISNULL
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the result of a CROSS JOIN between two tables?
A filtered set of rows based on a condition.
A set of rows with only matching entries.
A Cartesian product of the two tables.
A set of rows with no duplicates.
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