[sql] йцуйцу
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- CREATE TABLE Authors (
- author_id INT PRIMARY KEY AUTO_INCREMENT,
- author_name VARCHAR(255)
- );
- CREATE TABLE Categories (
- category_id INT PRIMARY KEY AUTO_INCREMENT,
- category_name VARCHAR(255)
- );
- CREATE TABLE Documents (
- document_id INT PRIMARY KEY AUTO_INCREMENT,
- title VARCHAR(255),
- content TEXT,
- author_id INT,
- created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
- modified_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
- FOREIGN KEY (author_id) REFERENCES Authors(author_id)
- );
- CREATE TABLE Documents_Categories (
- document_id INT,
- category_id INT,
- FOREIGN KEY (document_id) REFERENCES Documents(document_id),
- FOREIGN KEY (category_id) REFERENCES Categories(category_id)
- );
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