insert tbuseronline insert into tbuseronline(useronline_thoigiangannhat,useronline_ip,useronline_random,useronline_nhom,user_id,user_username,useronline_ngaydang) values('1506061411','54.158.21.160','3499631','0','0','','2017-09-22 13:23:31')Duplicate entry '235604' for key 'PRIMARY'