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
SQL for Engagement Metrics
00:00
5 left

SQL for Engagement Metrics

MediumSQL · PostgreSQL

Problem

Can you write a SQL query to extract specific user engagement metrics from a database for ABC Education?

Using the users and engagement_events tables, return metrics for every user, including users with no engagement records.

Output

  1. One row per user with user_id, full_name, total_events, active_days, lessons_completed, and last_engagement_at.
  2. Include zero values for users without events and exclude events for unknown users.
  3. Order by total_events descending, then user_id ascending.

Schema

users
ColumnTypeDescription
user_idPKINTUnique user identifier
full_nameVARCHAR(120)User's display name
statusVARCHAR(20)Current account status
engagement_events
ColumnTypeDescription
event_idPKINTUnique engagement event identifier
user_idINTUser associated with the event
event_typeVARCHAR(40)Type of engagement event
engaged_atTIMESTAMPTimestamp when the event occurred
lesson_idINTLesson associated with the event, when applicable
Tablesusersengagement_events
Interviewer

Your question is SQL for Engagement Metrics. 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.