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

Navigation

Dashboard
Learn
Career TracksMicro Free CoursesTask Courses
Practice
SQL & PythonInterview Prep
Career
Work 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 TracksMicro Free CoursesTask CoursesPracticeInterview PracticeWork ExperienceProjects
Career TrackBlog
Support
Dashboard
Career TracksMicro Free CoursesTask Courses
SQL & Python
Interview Prep
Work ExperienceProjectsResume Feedback
CertificatesMy OrdersRefer & Earn
Join Community

Navigation

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

Cumulative Revenue by Country Over Time

advanced~10 min35 pts
📊 View Insights

Problem

The finance team needs a cumulative revenue growth chart for key markets. Show monthly revenue alongside the running cumulative total for the USA, Canada, and France.

Schema: Invoice

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

Requirements:

  • Use a CTE to calculate monthly revenue per country
  • Use SUM() OVER (PARTITION BY Country ORDER BY Month) for cumulative total
  • Filter to USA, Canada, and France only
  • Return Country, Month, MonthlyRevenue, CumulativeRevenue
  • Order by Country, Month; limit to 20
CTEWindow FunctionsRunning TotalPARTITION BYDate FunctionsUber
📊
📊 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

  • Number Tracks Within Albumsintermediate
  • Rank Artists by Album Countintermediate
  • Dense Rank Tracks by Priceintermediate
  • Compare Invoice Dates with LEAD/LAGintermediate
  • Running Total of Invoice Amountsintermediate
  • Segment Customers into Quartilesintermediate
  • Basic CTE: Artist Album Countsintermediate
  • CTE: Top Tracks Per Genreadvanced
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