MySQL 5.7

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CREATE TABLE users (
    idUsers int(11) AUTO_INCREMENT PRIMARY KEY NOT NULL,
    uidUsers TINYTEXT NOT NULL,
    emailUsers VARCHAR(100) NOT NULL,
    pwdUsers LONGTEXT NOT NULL,
    created DATETIME NOT NULL, 
    UNIQUE (emailUsers),
    FULLTEXT(uidUsers)
);
CREATE TABLE articles (
    article_id INT(11) UNSIGNED NOT NULL AUTO_INCREMENT,
    title TEXT NOT NULL,
    article TEXT NOT NULL,
    date DATETIME NOT NULL,
    idUsers int(11) NOT NULL,
    topic VARCHAR(50) NOT NULL,
    published VARCHAR(50) NOT NULL,
    PRIMARY KEY (article_id),
    FULLTEXT(title, article),
    FOREIGN KEY (idUsers) REFERENCES users (idUsers) ON DELETE CASCADE ON UPDATE 
CASCADE
);
CREATE TABLE articlecomments (
    comment_id INT(11) AUTO_INCREMENT PRIMARY KEY NOT NULL,
    message TEXT NOT NULL,
    date DATETIME NOT NULL,
    article_id INT(11) UNSIGNED NOT NULL,
    idUsers INT(11) NOT NULL,
    seen TINYTEXT NOT NULL,
    FOREIGN KEY (article_id) REFERENCES articles (article_id) ON DELETE CASCADE ON UPDATE CASCADE,
    FOREIGN KEY (idUsers) REFERENCES users (idUsers) ON DELETE CASCADE ON UPDATE CASCADE
);
INSERT INTO users (uidUsers, emailUsers, pwdUsers, created) VALUES ('genericUser', 'genericUser@hotmail.com', 'password', NOW());

INSERT INTO articles (title, article, date, idUsers, topic, published) VALUES ('first article', 'first article contents', NOW(), '1', 'other', 'yes');
INSERT INTO articles (title, article, date, idUsers, topic, published) VALUES ('second article', 'second article contents', NOW(), '1', 'other', 'yes');
INSERT INTO articles (title, article, date, idUsers, topic, published) VALUES ('third article', 'third article contents', NOW(), '1', 'other', 'yes');

INSERT INTO articlecomments (message, date, article_id, idUsers, seen) VALUES ('first message', NOW(), '1', '1', 'false');
INSERT INTO articlecomments (message, date, article_id, idUsers, seen) VALUES ('second message', NOW(), '1', '1', 'false');
INSERT INTO articlecomments (message, date, article_id, idUsers, seen) VALUES ('third message', NOW(), '1', '1', 'false');

id_article_comment	title_message	created	article_id	uidUsers
1	first article	2023-05-12 01:30:18	1	genericUser
2	second article	2023-05-12 01:30:18	1	genericUser
3	third article	2023-05-12 01:30:18	1	genericUser
1	first message	2023-05-12 01:30:18	1	genericUser
2	second message	2023-05-12 01:30:18	1	genericUser
3	third message	2023-05-12 01:30:18	1	genericUser