Birk
80 lines
2.0 KiB
SQL
80 lines
2.0 KiB
SQL
CREATE TABLE ybirk.core_user (
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user_id Int32,
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name String,
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age Int32,
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email String,
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registration_date Date
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)
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ENGINE = MergeTree
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ORDER BY user_id;
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CREATE TABLE ybirk.core_course (
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course_id Int32,
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title String,
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category String
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)
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ENGINE = MergeTree
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ORDER BY course_id;
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CREATE TABLE ybirk.core_lesson (
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lesson_id Int32,
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title String,
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duration_min Int32,
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course_id Int32
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)
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ENGINE = MergeTree
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ORDER BY lesson_id;
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CREATE TABLE ybirk.core_fact_lesson_views (
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user_id Int32,
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lesson_id Int32,
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course_id Int32,
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viewed_at DateTime64(3)
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)
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ENGINE = MergeTree
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ORDER BY user_id;
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CREATE TABLE ybirk.core_enrollments (
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id Int32,
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user_id Int32,
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course_id Int32,
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enrolled_at Date
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)
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ENGINE = MergeTree
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ORDER BY user_id;
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-------------------------
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INSERT INTO ybirk.core_user (user_id, name, age, email, registration_date) VALUES
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(1, 'Alice', 25, 'alice@mail.com', '2023-01-10'),
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(2, 'Bob', 30, 'bob@gmail.com', '2023-02-05'),
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(3, 'Charlie', 22, 'charlie@mail.com', '2023-02-20'),
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(4, 'Diana', 28, 'diana@mail.com', '2023-03-01'),
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(5, 'Ethan', 35, 'ethan@gmail.com', '2023-03-10');
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INSERT INTO ybirk.core_course (course_id, title, category) VALUES
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(1, 'SQL для начинающих', 'data'),
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(2, 'Python для анализа данных', 'programming'),
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(3, 'BI с нуля', 'business');
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INSERT INTO ybirk.core_lesson (lesson_id, course_id, title, duration_min) VALUES
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(1, 1, 'SELECT и FROM', 10),
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(2, 1, 'JOIN', 15),
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(3, 2, 'Pandas', 20),
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(4, 3, 'Основы BI', 12),
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(5, 3, 'Метрики и дашборды', 18);
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INSERT INTO ybirk.core_fact_lesson_views (user_id, lesson_id, course_id, viewed_at) VALUES
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(1, 1, 1, '2023-01-16 10:00:00'),
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(1, 2, 1, '2023-01-16 10:15:00'),
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(2, 1, 1, '2023-01-21 09:00:00'),
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(3, 3, 2, '2023-03-06 12:00:00'),
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(4, 4, 3, '2023-04-02 10:00:00'),
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(4, 5, 3, '2023-04-03 10:00:00');
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INSERT INTO ybirk.core_enrollments (id, user_id, course_id, enrolled_at) VALUES
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(1, 1, 1, '2023-01-15'),
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(2, 1, 2, '2023-02-01'),
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(3, 2, 1, '2023-01-20'),
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(4, 3, 2, '2023-03-05'),
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(5, 4, 3, '2023-04-01'); |