dsolovianov/clickhouse/Pet-Project/Этап 2. Создание витринных таблиц.sql

@@ -18,6 +18,8 @@ CREATE TABLE dsolovianov.lesson_popularity_summary ON CLUSTER clickhouse_cluster
 )
 ORDER BY (course_id, lesson_id);
 
+DROP TABLE IF EXISTS dsolovianov.lesson_popularity_summary_mv ON CLUSTER clickhouse_cluster SYNC;
+
 CREATE MATERIALIZED VIEW dsolovianov.lesson_popularity_summary_mv ON CLUSTER clickhouse_cluster
 TO dsolovianov.lesson_popularity_summary
 AS
@@ -58,7 +60,7 @@ CREATE TABLE dsolovianov.inactive_users_summary ON CLUSTER clickhouse_cluster (
     user_id UInt32,
     name String,
     email String,
-    age UInt8,
+    age UInt32,
     registered_courses_count UInt32,
     registration_date Date
 ) ENGINE = ReplicatedMergeTree(
@@ -67,6 +69,8 @@ CREATE TABLE dsolovianov.inactive_users_summary ON CLUSTER clickhouse_cluster (
 )
 ORDER BY user_id;
 
+DROP TABLE IF EXISTS dsolovianov.inactive_users_summary_mv ON CLUSTER clickhouse_cluster SYNC;
+
 CREATE MATERIALIZED VIEW dsolovianov.inactive_users_summary_mv ON CLUSTER clickhouse_cluster
 TO dsolovianov.inactive_users_summary
 AS
@@ -184,3 +188,6 @@ FROM dsolovianov.core_enrollments e
 JOIN dsolovianov.core_dim_user u ON e.user_id = u.user_id
 JOIN dsolovianov.core_dim_course c ON e.course_id = c.course_id
 GROUP BY e.user_id, u.name, e.course_id, c.title;
+
+SELECT * FROM dsolovianov.course_completion_rate ORDER BY user_id;
+

dsolovianov/clickhouse/Pet-Project/Этап 3. Анализ и запросы.sql

@@ -1,21 +1,25 @@
--- Этап 3. Анализ и запросы - Напиши SQL-запросы к витринам -- Напиши свои вариации для практики--
+-- Этап 3. Анализ и запросы - Напиши SQL-запросы к витринам
+-- Напиши свои вариации для практики--
+
+
 -- Топ-5 самых просматриваемых уроков
 
 SELECT 
     lesson_title,
     course_title,
     total_views
-FROM lesson_popularity_summary
+FROM dsolovianov.lesson_popularity_summary
 ORDER BY total_views DESC
 LIMIT 5;
 
+
 -- Неактивные пользователи, записавшиеся на курсы
 
 SELECT 
     name,
     email,
     registered_courses_count
-FROM inactive_users_summary
+FROM dsolovianov.inactive_users_summary
 WHERE registered_courses_count > 0
 ORDER BY registration_date DESC;
 
@@ -24,7 +28,7 @@ ORDER BY registration_date DESC;
 SELECT 
     course_title,
     AVG(completion_rate) AS avg_completion
-FROM course_completion_rate
+FROM dsolovianov.course_completion_rate
 GROUP BY course_title
 ORDER BY avg_completion DESC
 LIMIT 5;