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SQL Top User Segments
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SQL Top User Segments

MediumSQL · PostgreSQL

Problem

Write a SQL query to identify the top three user segments by engagement over the last quarter.

Use the provided Wise. Energy user, segment, and engagement data. Define engagement as the number of engagement events during the previous calendar quarter.

Output

  1. One row per selected segment with segment_name, engagement_count, and active_users
  2. Include only the top three segments, ordered by engagement count descending and segment ID ascending for ties

Schema

segments
ColumnTypeDescription
segment_idPKINTUnique user segment identifier
segment_nameVARCHAR(100)Display name of the user segment
users
ColumnTypeDescription
user_idPKINTUnique Wise. Energy user identifier
segment_idINTAssigned user segment
engagement_events
ColumnTypeDescription
event_idPKINTUnique engagement event identifier
user_idINTUser associated with the engagement event
event_typeVARCHAR(50)Type of engagement activity
event_timestampTIMESTAMPTimestamp when the engagement occurred
Tablessegmentsusersengagement_events
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