请问在sql server中,怎样三表联合查询?假设A表与B表,A表与C表,B表与...答:insert into stuinfo(stuname,stuno,stusex,stuage,stuaddress)select '张秋丽','s25301','男',18,'北京海淀' from A表 union select '李文才','s25302','男',31, 'default' from B表 union select '欧阳俊雄','s25304','男',28,'新疆威武哈' from C表 三个互相关联会导致数据循环...