关联查询?
如二个表:
Student字段:
id
name
techer(外键)
Techer字段:
id(主键)
name
用Techer的id找出某一老师name和所负责学生name
------解决方案--------------------本帖最后由 bdmh 于 2013-03-14 11:18:04 编辑
select A.Name as teachername,B.Name as studentname from teacher A inner join student B on A.id=B.id where A.id=xxxxx
------解决方案--------------------select
stu.name as stuname,
tea.name as teaname
from teacher as tea
inner join student as stu
on tea.id = stu.techer
where tea.id = @id
------解决方案--------------------select A.Name as teachername,B.Name as studentname from teacher A,student B where A.id=B.id andA.id=xxxxx
------解决方案--------------------select
Student.name
Teacher.name
from Teacher,Student
where
Teacher.id=Student.teacher
and
Teacher.id=***