使用枢轴运算符划分成绩总和

Question

SELECT
    Student, [English], [Mathematics], [Science], [Programming], [History]
FROM
    (SELECT Student, Grades, Subject 
     FROM Grade_Report) AS SOURCETABLE
PIVOT
    (SUM(Grades) 
        FOR Subject IN ([English], [Mathematics], [Science], [Programming], [History])
    ) AS PIVOTTABLE

输出：

Jamie   188.00  161.00  163.00  183.00  184.00
Jenny   175.00  173.00  174.00  172.00  172.00
Jerome  184.00  186.00  184.00  191.00  181.00

预期输出：

Jamie   94      80.50   81.50   91.50   92
Jenny   87.50   86.50   87      86      86
Jerome  92      93      92      95.50   90.50

Answer 1

每个学生每个科目可以有两个分数？首先确保这一点

尝试使用平均值AVG(Grades)

SELECT
Student, [English], [Mathematics], [Science], [Programming], [History]
FROM
(SELECT Student, Grades, Subject 
 FROM Grade_Report) AS SOURCETABLE
PIVOT
(AVG(Grades) 
    FOR Subject IN ([English], [Mathematics], [Science], [Programming], 
 [History])
)

使用枢轴运算符划分成绩总和

Divide the sum of grades using pivot operator

sql

sql-server

database

tsql

sql-server-ce