Question

我有一个看起来像这样的桌子

    EmployeeID | Name | Check Date | Check Num | Check Amount | Quarter
    1          | Test | 01/21/2018 | 001231312 | 500          | 1
    1          | Test | 03/01/2018 | 001233210 | 100          | 1
    1          | Test | 05/01/2018 | 123213321 | 13           | 2
    1          | Test | 08/01/2018 | 321909900 | 321          | 3
    1          | Test | 12/01/2018 | 321000132 | 123          |4

我需要显示以下输出

EmployeeID | Name | 1st Quarter Date | 1st Quarter Check Num | 1st Quarter Check Amount | 2nd Quarter Date | 2nd Quarter Check Num | 2nd Quarter Check Amount | 3rd Quarter Date | 3rd Quarter Check Num | 3rd Quarter Check Amount | 4th Quarter Date | 4th Quarter Check Num | 4th Quarter Check Amount

我正在对此进行研究，发现了有关使用Pivot的信息，但是尚不清楚何时显示详细信息而不是一些列的汇总。

谢谢

Answer 1

我认为最简单的方法是将Datepart（QUARTER，Check Date）与案例声明结合使用。

示例：

Select EmployeeID
   , Name
   , CASE WHEN Datepart(QUARTER, CheckDate) = 1 Then 'Check Date' END AS '1st Quarter Date'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 1 Then 'Check Num' END AS '1st Quarter Check Num'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 1 Then 'Check Amount' END AS '1st Quarter Check Amount'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 2 Then 'Check Date' END AS '2nd Quarter Date'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 2 Then 'Check Num' END AS '2nd Quarter Check Num'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 2 Then 'Check Amount' END AS '2nd Quarter Check Amount' 
   , CASE WHEN Datepart(QUARTER, CheckDate) = 3 Then 'Check Date' END AS '3rd Quarter Date'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 3 Then 'Check Num' END AS '3rd Quarter Check Num'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 3 Then 'Check Amount' END AS '3rd Quarter Check Amount' 
   , CASE WHEN Datepart(QUARTER, CheckDate) = 4 Then 'Check Date' END AS '4th Quarter Date'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 4 Then 'Check Num' END AS '4th Quarter Check Num'
   , CASE WHEN Datepart(QUARTER, CheckDate) = 4 Then 'Check Amount' END AS '4th Quarter Check Amount' 
From YourTableName

我敢肯定，有更清洁的方法可以做到这一点，而且我敢肯定，其他人也会喜欢。另外，请不要因为我没有在Datepart中使用相同的列名，我相信由于空格（Datepart（QUARTER，'Check Date'））您将需要''。

编辑：OP添加了一些示例数据，由于有一个“季度”列，我们可以将Case语句更改为：

CASE WHEN QUARTER = 1 Then ....
CASE WHEN QUARTER = 2 Then ....
CASE WHEN QUARTER = 3 Then ....
CASE WHEN QUARTER = 4 Then ....

按季度SQL查询的工资明细

1 个答案: