如何在SQL查询中将列显示为行？

Question

我试图显示包含两个表tblStudents和tblExamResults的简单数据库的检查结果。

tblstudents包括学生证和FULL_NAME列

在tblexamResults列student_id数据，主题和标志。在

下面图片

1-目前我显示学生成绩使用此查询

SELECT  tblStudents.Full_Name, tblExamResults.Subject, tblExamResults.Marks 
FROM   tblExamResults INNER JOIN 
         tblStudents ON tblExamResults.Student_id = tblStudents.Student_ID 
order by tblStudents.Full_Name 

2 - 和结果看起来像下面的图片：

3 - 但我想是为了显示每个主题行和让每个学生的结果显示在同一行中获得它下面

每个科目的结果：

Student_Namesub1_resultsub2_Resultsub3_Result

如同下面的图片（Excel的屏幕截图）

所以：

• 我怎么能显示该格式数据？
• SQL Server中可能吗？

Answer 1

select fullname,[english] english, [history] history, [physics] physics 
from 
(
    select fullname,subject,marks 
    from (yourquery) 
) src 
pivot 
(
    max(marks) 
    for subject in ([english], [history], [physics]) 
) piv; 

或

DECLARE @cols AS NVARCHAR(MAX), 
    @query AS NVARCHAR(MAX); 

SET @cols = STUFF((SELECT distinct ',' + QUOTENAME(c.subject) 
      FROM (yourquery) c 
      FOR XML PATH(''), TYPE 
      ).value('.', 'NVARCHAR(MAX)') 
     ,1,1,'') 


set @query = 'SELECT fullname, ' + @cols + ' from 
      (
       select fullname,subject,marks 
       from (your query) 
      ) x 
      pivot 
      (
       max(marks) 
       for subject in (' + @cols + ') 
      ) p ' 


execute(@query) 
fullname english history physics 
    a 85 70 60 
    i 60 100 89 
    s 90 90 99 

Answer 2

最后我用在FROM (yourquery) c

@Chanukya回答与该回答我在5号线得到错误becouse括号的变化不大 的下一部分

Declare @query nvarchar(max); 

DECLARE @cols AS NVARCHAR(MAX); 
SET @cols = STUFF((SELECT distinct ',' + QUOTENAME(c.subject) 
      FROM tblExamResults c ' parentheses Removed from (tblExamResults) c 
      FOR XML PATH(''), TYPE 
      ).value('.', 'NVARCHAR(MAX)') 
     ,1,1,''); 
     print(@cols) 
    set @query = ' 
SELECT * 
FROM (
    SELECT  tblStudents.Full_Name, tblExamResults.Subject, tblExamResults.Marks 
FROM   tblExamResults INNER JOIN 
         tblStudents ON tblExamResults.Student_id = tblStudents.Student_ID 
) as s 
PIVOT 
(
    sum(marks) FOR subject IN ('+ @cols +') 
)AS pvt' 
; 
execute(@query)