sql如何通过联查把数据插入数据库答:insert into 要插入到的表名(对应字段username,softname,email,useradress,userphone,regNumthis) select userinfo.username,softinfo.softname,dealorsinfo.email,userinfo.useradress,userinfo.userphone,softmange.regNumthis from userinfo inner join dealorsinfo on userinfo.dealorid=dealorsinfo.dealor...