Question

这是我的桌子。在这里，我有一个学生的出席属于一个部分。每日出勤一年。

   student_name     id       attendance       dates
--------------------------------------------------------------------
    abc             1         p             2015-12-29 11:58:29.143
    def             2         a             2015-12-28 11:58:29.143
    ghk             3         p             2015-12-27 11:58:29.143

---------------------------------------------------------------------

这里我需要打印如下

student_name  id  month   1 2 3 4 5 6 7  8 9 10....31
------------------------------------------------------------
abc          1    jan     p f p p p p p p...............
pqr          2    feb     p p p p p p p p ...........

请帮我写这样的剧本。我必须每月打印每个学生每月的出勤率

Answer 1

您可以使用以下sql查询以您询问的格式获取输出：

SELECT * FROM(
SELECT [Name]
  ,[Id]
  ,[attendance]
  ,DATENAME(M, [date])as [MonthValue]
  ,DAY([date]) as [DayValue]
FROM [students]) as stud
PIVOT
(
 MAX([attendance])
 FOR [DayValue] IN ([1], [2], [3], [4],[5], [6], [7], [8], [9],[10], [11], [12], [13], [14],[15], [16], [17], [18], [19],[20], [21], [22], [23], [24],[25], [26], [27], [28], [29],[30])
) AS PivotTable;

每个学生每月出勤

1 个答案: