Prevent Cleanup Event

UPDATE Object_DATA
      SET    Datestamp   = CURRENT_TIMESTAMP
      WHERE  ObjectUID   <> 0
      AND    CharacterID <> 0
      AND  ((Inventory IS NULL) OR (Inventory = '[]'))
      AND EXISTS (SELECT 1
                  FROM   Character_DATA c
                  WHERE  c.PlayerUID = (SELECT p.PlayerUID
                                        FROM   Player_DATA p,
                                               Character_DATA c2
                                        WHERE  p.PlayerUID = c2.PlayerUID
                                        AND    c2.CharacterID = Object_DATA.CharacterID)
                  AND    c.Alive = 1
                  AND    c.LastLogin   > NOW() - INTERVAL 1 WEEK)