Go Career
Explore
Pricing
Resources
Login
Get Started
Interview Prep
Back to SQL
Advanced
17 questions
Questions
1
Question 1
2
Question 2
3
Question 3
4
Question 4
5
Question 5
6
Question 6
7
Question 7
8
Question 8
9
Question 9
10
Question 10
11
Question 11
12
Question 12
13
Question 13
14
Question 14
15
Question 15
16
Question 16
17
Question 17
Toggle Sidebar
Back to Advanced
Question 6
/
17
advanced
Select one answer
What is an INDEX in SQL?
A table of contents for the database
A data structure that improves the speed of data retrieval
The primary key of a table
A unique identifier for rows
Premium Question
Upgrade to unlock this question and 300+ more interview prep MCQs.
Upgrade Now
Previous
Back to Advanced
Next
