Dataford
Interview QuestionsInterview GuidesExperiencesCoaching
New
Pricing
Get started
Dataford
Popular roles
Software EngineerData AnalystData ScientistData EngineerBusiness AnalystAI EngineerMachine Learning EngineerProduct Manager
Browse
Browse All RolesEvery role hub, from analyst to MLBrowse All CompaniesCompany-specific interview loopsAll Interview GuidesThe full guide library
Top questions by role
Software EngineerData AnalystData ScientistData EngineerBusiness AnalystAI EngineerMachine Learning EngineerProduct Manager
Top questions by skill
SQLPythonStatisticsMachine LearningA/B TestingSystem DesignGenerative AIProduct SenseMetricsBehavioral
Browse all questions →Try a mock interview
Experiences
Practice
Mock InterviewsTimed interview simulations with feedbackCoaching1:1 coaching with people at your target companiesSuccess PathYour 6-week structured planModulesCurated lessons by topicWebinarsTalks from ex-Big Tech data leadsPlaygroundA free-form scratch editor
Learn
BlogInterview strategy and career adviceTech Job Market ReportHiring trends across data and AI rolesFor UniversitiesDataford for career centersAbout DatafordWho we are and how we build
Pricing
Build my plan
Top Shows by Region
00:00
5 left

Top Shows by Region

MediumSQL · PostgreSQL

Problem

Write a query to find the top 10 most-watched shows in a specific region over the last 30 days on Hotstar.

Use IN as the target region and CURRENT_DATE as the reference date. Treat total watch_seconds as the measure of how much each show was watched.

Output

  1. One row per show, with show_id, show_title, and total_watch_seconds.
  2. Include only shows with qualifying views from the target region during the last 30 days.
  3. Sort by total_watch_seconds descending, breaking ties by show_id ascending, and return at most 10 rows.

Schema

viewing_events
ColumnTypeDescription
event_idPKINTUnique viewing event identifier
show_idINTShow watched during the event
regionVARCHAR(10)Viewer region code
watched_atTIMESTAMPTimestamp when the viewing event occurred
watch_secondsINTNumber of seconds watched
shows
ColumnTypeDescription
show_idPKINTUnique Hotstar show identifier
show_titleVARCHAR(150)Display title of the show
content_typeVARCHAR(30)Content classification
Tablesviewing_eventsshows
Interviewer

Your question is Top Shows by Region. Start with the requirements and the two tables in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.

You need to log in / sign up to run or submit.
CodePostgreSQL
Sign up free to run your codeLog inLn 1
Run your query to see results here.