Topfolio
Career TracksJob Hunt TrackerMicro Free CoursesTask CoursesPracticeInterview PracticeWork ExperienceProjects
Career TrackBlog
Support
Dashboard
Career TracksMicro Free CoursesTask Courses
SQL & Python
Interview Prep
Job Hunt TrackerWork ExperienceProjectsResume Feedback
CertificatesMy OrdersRefer & Earn
Join Community

Navigation

Dashboard
Learn
Career TracksMicro Free CoursesTask Courses
Practice
SQL & PythonInterview Prep
Career
Job Hunt TrackerWork ExperienceProjectsResume Feedback
My Stuff
CertificatesMy OrdersRefer & Earn
Join Community
Topfolio

Learn data analytics online. Real skills, real projects, real community.

courses

  • Career Tracks
  • Work Experience
  • Best Data Analyst Course in India
  • SQL Fundamentals
  • SQL Advanced
  • Python for Data
  • Micro Free Courses

practice

  • SQL Fundamentals Interview Test
  • SQL Advanced Coding Test
  • All Practice Tests

resources

  • How to Become a Data Analyst
  • SQL Interview Questions
  • Data Analyst Salary Guide
  • Free Datasets for Practice
  • SQL vs NoSQL Guide
  • Data Analyst vs Data Engineer vs Data Scientist

employers

  • Enterprise Screening
  • AI Proctoring Demo
  • Volume Pricing
  • Employer Portal

company

  • About
  • Terms
© 2026 Topfolio. All rights reserved.Made with ❤️ for aspiring analysts
Topfolio
Career TracksJob Hunt TrackerMicro Free CoursesTask CoursesPracticeInterview PracticeWork ExperienceProjects
Career TrackBlog
Support
Dashboard
Career TracksMicro Free CoursesTask Courses
SQL & Python
Interview Prep
Job Hunt TrackerWork ExperienceProjectsResume Feedback
CertificatesMy OrdersRefer & Earn
Join Community

Navigation

Dashboard
Learn
Career TracksMicro Free CoursesTask Courses
Practice
SQL & PythonInterview Prep
Career
Job Hunt TrackerWork ExperienceProjectsResume Feedback
My Stuff
CertificatesMy OrdersRefer & Earn
Join Community

Top 5 Countries by Sales

beginner~7 min10 pts
📊 View Insights

Problem

The executive team wants to know which countries generate the most revenue. Create a report showing total sales by country, focusing on the top 5 markets.

Write a SQL query that calculates total sales (sum of invoice totals) per country, ordered by sales descending, limited to the top 5.

Schema: Invoice

ColumnType
InvoiceIdINTEGER (Primary Key)
CustomerIdINTEGER (Foreign Key → Customer.CustomerId)
InvoiceDateTIMESTAMP
BillingAddressTEXT
BillingCityTEXT
BillingStateTEXT
BillingCountryTEXT
BillingPostalCodeTEXT
TotalNUMERIC(10,2)

Requirements:

  • Sum the Total column grouped by BillingCountry
  • Return BillingCountry and TotalSales
  • Order by TotalSales descending
  • Limit to top 5 countries
GROUP BYSUMAggregationLIMIT
📊
📊 View Question Telemetry & Insights
Failure rate, silent bug autopsy & optimal query construction
Inspect →

Master SQL & Data Analytics

Ready to take your skills to the next level? Enroll in our comprehensive Data Analyst Career Track to master SQL, Python, Excel, and Power BI.

Explore the 12-Week Data Analyst Career Track

Related questions

  • Top 5 Most Expensive Tracksbeginner
  • Ten Longest Songsbeginner
  • Total Track Countbeginner
  • Track Count by Genreintermediate
  • Average Song Duration by Genreintermediate
  • Most Prolific Artistsintermediate
  • Rank Artists by Album Countintermediate
  • Running Total of Invoice Amountsintermediate
SQL Editor

Run your code to see the result here.

Topfolio

Learn data analytics online. Real skills, real projects, real community.

courses

  • Career Tracks
  • Work Experience
  • Best Data Analyst Course in India
  • SQL Fundamentals
  • SQL Advanced
  • Python for Data
  • Micro Free Courses

practice

  • SQL Fundamentals Interview Test
  • SQL Advanced Coding Test
  • All Practice Tests

resources

  • How to Become a Data Analyst
  • SQL Interview Questions
  • Data Analyst Salary Guide
  • Free Datasets for Practice
  • SQL vs NoSQL Guide
  • Data Analyst vs Data Engineer vs Data Scientist

employers

  • Enterprise Screening
  • AI Proctoring Demo
  • Volume Pricing
  • Employer Portal

company

  • About
  • Terms
© 2026 Topfolio. All rights reserved.Made with ❤️ for aspiring analysts