Dmitry Medvedev
39 lines
837 B
SQL
39 lines
837 B
SQL
CREATE TABLE users
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(
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id INT PRIMARY KEY NOT NULL,
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name VARCHAR(100) NOT NULL,
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age INT,
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email VARCHAR(100),
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country VARCHAR(2),
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is_active BOOLEAN DEFAULT true,
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created_at TIMESTAMPTZ NOT NULL
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);
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CREATE TABLE products
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(
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id INT PRIMARY KEY NOT NULL,
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name VARCHAR(100) NOT NULL,
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category VARCHAR(50),
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price DECIMAL(10,2) NOT NULL,
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in_stock BOOLEAN
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);
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CREATE TABLE orders
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(
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id SERIAL PRIMARY KEY NOT NULL,
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user_id INT,
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order_date TIMESTAMPTZ NOT NULL,
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status VARCHAR(20),
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FOREIGN KEY (user_id) REFERENCES users(id)
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);
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CREATE TABLE order_items
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(
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order_id INT NOT NULL,
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product_id INT NOT NULL,
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quantity INT NOT NULL,
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price_at_purchase DECIMAL(10,2) NOT NULL,
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PRIMARY KEY (order_id, product_id),
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FOREIGN KEY (order_id) REFERENCES orders(id),
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FOREIGN KEY (product_id) REFERENCES products(id)
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); |