Error in executing UPDATE linktbl SET link_total = , link_clickedsince = , link_lastclicked='2021-09-28 10:13:19' WHERE link_id=13895error: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ' link_clickedsince = , link_lastclicked='2021-09-28 10:13:19' WHERE link_id=' at line 1