sql语法错误insert into

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 'group,group_name,password,user,chechk_tag,gar_tag,vote,register_time) values ('è' at line 1

sql是这样的：
sql = "insert into teach_login(group,group_name,password,user,chechk_tag,gar_tag,vote,register_time)"+
" values ('"+group+"','"+groupName+"','"+password+"','"+user+"',1,0,'"+vote+"','"+registerTime+"')";
System.out.println(sql);
实在找不出那里有错啊,控制台打印出来是：insert into teach_login(group,group_name,password,user,chechk_tag,gar_tag,vote,register_time) values ('豆腐干','豆腐干','放过','null',1,0,' 豆腐干','2015-06-08 13:56:47')

group是关键字吧。最好不要用关键字最为列名

应该是那两个日期字段的问题吧，试试这样呢 insert into main (pid,pname,pxuexiao,pzj,pzj_code,pzj_date1,pzj_date2,pzj_add) values（500011,'123','100','10','10000',to_date('2014-09-16','yyyy-mm-dd'),to_date('2014-09-16','yyyy-mm-dd'),'1'） 还有，main这个表名是不是oracle关键字啊，看着挺可疑的

-- group 加单引号 insert into teach_login('group',group_name,password,user,chechk_tag,gar_tag,vote,register_time)  values ('豆腐干','豆腐干','放过','null',1,0,' 豆腐干','2015-06-08 13:56:47')