如何使用两个带条件的表来选择查询

Question

我有2个表，Student_Record的表A和Student_ID字段链接的Student_Subject的表B.

Table A (Student_Record)
Student_ID | Name  | School_Year
1          | Jane  | 2010-2011
2          | Amy   | 2010-2011
3          | Dave  | 2011-2012
4          | Roger | 2010-2011

Table B (Student_Subject)
Student_ID | Subject | Grade
1          | Math    | Passed
1          | Physics | Passed
1          | History | Passed
2          | Math    | Failed
2          | Physics | Passed
2          | History | Passed
3          | Math    | Passed
3          | Physics | Passed
3          | History | Passed
4          | Math    | Passed
4          | Physics | Passed
4          | History | Passed

根据上面的示例表，我想选择2010 - 2011年注册的学生，并通过所有科目。

结果应该返回 Jane 和 Roger ，因为他们通过了所有3个科目并且在2010-2011注册了 Amy < / strong>数学失败，戴夫，其学年是2011-2012。

Answer 1

select sr.Student_ID, sr.Name
from Student_Record sr
left outer join Student_Subject ss on sr.Student_ID = ss.Student_ID 
    and ss.Grade = 'Failed'
where ss.Student_ID is null
    and sr.School_Year = '2010-2011'

SQL Fiddle Example