use myschool
--查詢學生姓名、所屬年級名稱及聯絡**。
select s.studentname as 姓名,g.gradename as 年級,s.phone as **
from student as s
inner join grade as g on s.gradeid=g.gradeid
select s.studentname as 姓名,g.gradename as 年級,s.phone as **
from student as s,grade as g where s.gradeid=g.gradeid
--查詢年級編號為1的科目名稱、年級名稱及學時。
select j.subjectname as 科目名稱,g.gradename as 年級,j.classhour as 學時
from subject as j
inner join grade as g on j.gradeid=g.gradeid
where g.gradeid=1
select j.subjectname as 科目名稱,g.gradename as 年級,j.classhour as 學時
from subject as j,grade as g
where j.gradeid=g.gradeid and g.gradeid=1
--查詢參加科目編號為1的考試的學生姓名、分數、考試日期。
select s.studentname as 姓名,r.studentresult as 分數,r.examdate as 考試日期
from result as r
inner join student as s on r.studentno=s. studentno
where r.subjectid=1
select s.studentname as 姓名,r.studentresult as 分數,r.examdate as 考試日期
from result as r,student as s
where r.studentno=s. studentno and r.subjectid=1
--查詢學號為s1101007的學生參加的考試科目名稱、分數、考試日期。
select j.subjectname as 科目名稱,r.studentresult as 分數,r.examdate as 考試日期
from result as r
inner join subject as j on r.subjectid=j.subjectid
where r.studentno='s1101007'
select j.subjectname as 科目名稱,r.studentresult as 分數,r.examdate as 考試日期
from result as r ,subject as j
where r.subjectid=j.subjectid and r.studentno='s1101007'
--查詢參加考試的學生學號、所考科目名稱、分數、考試日期.
select r.studentno as 學生學號,j.subjectname as 科目名稱,r.studentresult as 分數,r.examdate as 考試日期
from result as r
inner join subject as j on r.subjectid=j.subjectid
select r.studentno as 學生學號,j.subjectname as 科目名稱,r.studentresult as 分數,r.examdate as 考試日期
from result as r,subject as j
where r.subjectid=j.subjectid
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