text: CREATE TABLE user (
   id INT(11) NOT NULL AUTO_INCREMENT,
   name VARCHAR(50) NOT NULL,
   password VARCHAR(50) NOT NULL,
   PRIMARY KEY (id)
  );
  
  CREATE TABLE post (
   id INT(11) NOT NULL AUTO_INCREMENT,
   title VARCHAR(100) NOT NULL,
   content LONGTEXT NOT NULL,
   creationtime DATETIME NOT NULL,
   user_id INT(11) NOT NULL,
   PRIMARY KEY (id)
  );
  
  CREATE TABLE comment (
  id INT(11) NOT NULL AUTO_INCREMENT,
  content LONGTEXT NOT NULL,
  creationtime DATETIME NOT NULL,
  post_id INT(11) NOT NULL,
  user_id INT(11) NOT NULL,
  PRIMARY KEY (id)
  );