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SQL for Engagement Metrics
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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.

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CodePostgreSQL
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