text: insert into sessions (id, date) 
      values 
          (null, DATETIME('now','-7 day')),
          (null, DATETIME('now','-8.5 day')),
          (null, DATETIME('now','-8.3 day')),
          (null, DATETIME('now','-4 day')),
          (null, DATETIME('now','-3 day')),
          (null, DATETIME('now','-2 day'));
  