SERGEY_KONEV
45 lines
995 B
SQL
45 lines
995 B
SQL
--создаем таблицы для raw слоя с DISTRIBUTED REPLICATED, т.к. таблицы довольно маленькие
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CREATE TABLE raw.users (
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id BIGINT PRIMARY KEY,
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name VARCHAR(100),
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age INT,
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email VARCHAR(255) UNIQUE,
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registration_date DATE NOT NULL
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)
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DISTRIBUTED REPLICATED;
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CREATE TABLE raw.courses(
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id BIGINT PRIMARY KEY,
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title TEXT NOT NULL,
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category VARCHAR(255) CHECK (category IN ('data', 'programming', 'business')),
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created_at DATE NOT NULL
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)
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DISTRIBUTED REPLICATED;
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CREATE TABLE raw.lessons(
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id BIGINT PRIMARY KEY,
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course_id INT NOT NULL,
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title TEXT NOT NULL,
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duration_min INT NOT NULL
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)
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DISTRIBUTED REPLICATED;
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CREATE TABLE raw.enrollments(
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id BIGINT PRIMARY KEY,
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user_id INT NOT NULL,
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course_id INT NOT NULL,
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enrolled_at DATE NOT NULL
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)
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DISTRIBUTED REPLICATED;
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CREATE TABLE raw.lesson_views(
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id BIGINT PRIMARY KEY,
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user_id INT NOT NULL,
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lesson_id INT NOT NULL,
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viewed_at TIMESTAMP NOT NULL
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)
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DISTRIBUTED REPLICATED;
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