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With this course, you will:

Practice 100 interview questions
Solve challenges in real-time
Earn a professional certificate

Average Salary (US)

$81,000

Prerequisites

Learn SQL Basics

Average Salary (US)

$81,000

Prerequisites

Learn SQL Basics

Start Now!

Enroll for FREE

Course

SQL Interview Questions

Ace your coding interview with this comprehensive and curated course of the most important SQL interview questions.

Level: Intermediate
Duration: 2 weeks
Type: Interactive
Language: English
Coding Challenges: 45+

Chapter 1:

Introduction

1.1Introduction to Course

Chapter 2:

SQL Basic Queries

2.1Top 3 Teams in the League 2.2Popular Books in the Last Decade 2.3Laptop vs. Mobile Viewership 2.4Either/Or But Not Both 2.5Order Alphabetically When Condition is Met

Chapter 3:

Intermediate Questions

3.1Retrieve Orders Delivered In Certain Days 3.2Sort the Monthly Sales 3.3Sort the Candidates in Ascending Order 3.4Books With Multiple Words But No 'Z'3.5Movies With Duration Greater Than Average 3.6Anime With Above Average Ratings 3.7Largest Non-Repeating Number 3.8Interesting Movies With Odd Numbered IDs 3.9Daily Active Users 3.10JOIN Two Tables

Chapter 4:

Advanced Questions

4.1Delete Duplicate Rows From a Table 4.2Top 3 Highest-Paid Employees 4.3Pivot Tables 4.4Fix the Names 4.5Customer Payment in 7 Days 4.6JOIN Three Tables 4.7Employees and Salaries 4.8Query Optimization 4.9Gameplay Analysis 4.10Highest Rated Episode

Chapter 5:

What's Wrong With This Code?

5.1Introduction 5.2Unique Key Logical Error 5.3Naming Conflict 5.4String vs. Numeric Comparison 5.5JOIN Type 5.6Wrong Use of GROUP BY 5.7Using BETWEEN 5.8ON DELETE CASCADE 5.9Missing WHERE Clause 5.10Multiple Primary Keys 5.11Reference Error 5.12Incorrect Table Alias 5.13Incorrect Alias Reference 5.14Logical Error 5.15Incorrect JOIN Reference 5.16Incorrect Use of CASE

Chapter 6:

What Will Happen If We Execute This Query?

6.1Introduction 6.2Use of LIMIT 6.3Parentheses to Group Conditions 6.4TOP vs. LIMIT 6.5NULL Values With IN 6.6Using SUBQUERY 6.7Wildcard Characters 6.8Using IS NULL Operator 6.9INNER JOINs 6.10DISTINCT With GROUP BY 6.11Order of Execution

Chapter 9:

What's Next?

9.1Tips And Tricks for SQL Interview 9.2Ace Your Interview

Start this Course

Don't just read questions

Solve questions asked in real interviews

Write a query to filter products based on the given conditions.

Consider the following table:

Products

id	name	price
1	keyboard	250
2	mouse	175
7	headphone	150

Task: Select all the products whose price is greater than 160 but less than 180.

Expected Output

The output of the query will be:

id	name	price
2	mouse	175

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CERTIFICATE OF COMPLETION

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Jane Doe

has successfully completed the course