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fix mistakes

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Dmitry Medvedev
2026-07-22 21:15:19 +05:00
parent 2dc158dd95
commit f443cd4855
2 changed files with 393 additions and 2 deletions
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dmedvedev/11.4 Pet project Cohort_analysis.sql
+1 -1
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@@ -7,7 +7,7 @@ SELECT
COUNT(DISTINCT pe.user_id) AS enrolled_users,
COUNT(DISTINCT plv.user_id) AS active_users,
--ROUND(COUNT(DISTINCT plv.user_id) * 100.0 / COUNT(DISTINCT pu.id), 2) || '%' AS retention_rate,
ROUND(COUNT(pe.id) * 100.0 / COUNT(DISTINCT pu.id), 2) || '%' AS retention_rate,
ROUND(COUNT(DISTINCT pe.user_id) * 100.0 / COUNT(DISTINCT pu.id), 2) || '%' AS retention_rate,
ROUND(AVG((SELECT COUNT(pe.id)
FROM pet_enrollments pe)) / COUNT(DISTINCT pu.id), 2) AS avg_courses_per_user,
(SELECT