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CREATE TABLE comments (

    id INT UNSIGNED AUTO_INCREMENT,

    parent_id INT UNSIGNED,

    article_id INT UNSIGNED NOT NULL,

    user_id INT UNSIGNED NOT NULL,

    ip VARCHAR(255) NOT NULL,

    submitted_at TIMESTAMP DEFAULT NOW(),

    comment TEXT,

    PRIMARY KEY (id),

    CONSTRAINT fk_com_parent

        FOREIGN KEY (parent_id)

        REFERENCES comments (id)

    CONSTRAINT fk_com_article

        FOREIGN KEY (article_id)

        REFERENCES articles (id)

    CONSTRAINT fk_com_user

        FOREIGN KEY (user_id)

        REFERENCES users (id)

);

CREATE TABLE comments (

    id INT UNSIGNED AUTO_INCREMENT,

    parent_id INT UNSIGNED,

    article_id INT UNSIGNED NOT NULL,

    user_id INT UNSIGNED NOT NULL,

    ip VARCHAR(255) NOT NULL,

    submitted_at TIMESTAMP DEFAULT NOW(),

    comment TEXT,

    PRIMARY KEY (id),

    CONSTRAINT fk_com_parent

        FOREIGN KEY (parent_id)

        REFERENCES comments (id)

    CONSTRAINT fk_com_article

        FOREIGN KEY (article_id)

        REFERENCES articles (id)

    CONSTRAINT fk_com_user

        FOREIGN KEY (user_id)

        REFERENCES users (id)

);

CREATE TABLE comments (

    id INT UNSIGNED AUTO_INCREMENT,

    parent_id INT UNSIGNED,

    article_id INT UNSIGNED NOT NULL,

    user_id INT UNSIGNED NOT NULL,

    ip VARCHAR(255) NOT NULL,

    submitted_at TIMESTAMP DEFAULT NOW(),

    comment TEXT,

    PRIMARY KEY (id),

    CONSTRAINT fk_com_parent

        FOREIGN KEY (parent_id)

        REFERENCES comments (id)

    CONSTRAINT fk_com_article

        FOREIGN KEY (article_id)

        REFERENCES articles (id)

    CONSTRAINT fk_com_user

        FOREIGN KEY (user_id)

        REFERENCES users (id)

);

CREATE TABLE comments (

    id INT UNSIGNED AUTO_INCREMENT,

    parent_id INT UNSIGNED,

    article_id INT UNSIGNED NOT NULL,

    user_id INT UNSIGNED NOT NULL,

    ip VARCHAR(255) NOT NULL,

    submitted_at TIMESTAMP DEFAULT NOW(),

    comment TEXT,

    PRIMARY KEY (id),

    CONSTRAINT fk_com_parent

        FOREIGN KEY (parent_id)

        REFERENCES comments (id)

    CONSTRAINT fk_com_article

        FOREIGN KEY (article_id)

        REFERENCES articles (id)

    CONSTRAINT fk_com_user

        FOREIGN KEY (user_id)

        REFERENCES users (id)

);

Your Answer

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