Anton
51 lines
1.3 KiB
SQL
51 lines
1.3 KiB
SQL
DROP SCHEMA IF EXISTS edu_platform CASCADE;
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CREATE SCHEMA edu_platform;
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drop table if exists edu_platform.users;
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CREATE TABLE edu_platform.users (
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id SERIAL PRIMARY KEY,
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name VARCHAR(100) NOT NULL,
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age INT NOT NULL,
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email VARCHAR(100) NOT NULL,
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registration_date DATE NOT NULL
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);
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drop table if exists edu_platform.courses;
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CREATE TABLE edu_platform.courses (
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id SERIAL PRIMARY KEY,
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title VARCHAR(100) NOT NULL,
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category VARCHAR(100) NOT NULL,
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created_at DATE not NULL
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);
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drop table if exists edu_platform.lessons;
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create TABLE edu_platform.lessons (
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id SERIAL PRIMARY KEY,
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course_id INT NOT NULL,
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title VARCHAR(100) NOT NULL,
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duration_min INT NOT null,
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FOREIGN KEY (course_id) REFERENCES edu_platform.courses(id)
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);
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drop table if exists edu_platform.enrollments;
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create TABLE edu_platform.enrollments (
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id SERIAL 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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foreign key (user_id) references edu_platform.users(id),
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foreign key (course_id) references edu_platform.courses(id)
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);
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drop table if exists edu_platform.lesson_views;
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create table edu_platform.lesson_views (
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id SERIAL 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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foreign key (user_id) references edu_platform.users(id),
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foreign key (lesson_id) references edu_platform.lessons(id)
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);
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