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CREATE TABLE users ( id INT NOT NULL AUTO_INCREMENT, username VARCHAR(50) NOT NULL, PRIMARY KEY (id) ); CREATE TABLE privileges ( id INT NOT NULL AUTO_INCREMENT, privilege VARCHAR(50) NOT NULL, PRIMARY KEY (id) ); CREATE TABLE user_privileges ( user_id INT NOT NULL, privilege_id INT NOT NULL, PRIMARY KEY (user_id, privilege_id), FOREIGN KEY (user_id) REFERENCES users(id), FOREIGN KEY (privilege_id) REFERENCES privileges(id) )
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