数据库中表中元素赋值问题！！！
select menu_topic,temper_id from menuInfo,temper where temper_id=menu_id
update menuInfo set menu_topic where menu_topic in(select menu_topic,temper_id from menuInfo,temper where temper_id=menu_id )
哪错了
[解决办法]
update menuInfo set menu_topic where menu_topic in(select menu_topic from menuInfo,temper where temper_id=menu_id )
[解决办法]
menu_id 是变量？还是SqlCommand中的参数？
如果是变量要改为：
"select menu_topic,temper_id from menuInfo,temper where temper_id = ' " + menu_id + " ' "
如果是SqlCommand中的参数，要改为：
select menu_topic,temper_id from menuInfo,temper where temper_id = @menu_id
