sql - 两行值合二为一

Question

谁能告诉我如何显示两个行值，一行中的两个不同列值和两列。下面是表格：

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Test ID     Total Employees    Response Score     Eval Score
1                7                    4.24              0
1                7                       0              4.78
2                13                   4.52              0
2                13                      0              4.89 

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所以我正在寻找输出：

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Test ID     Total Employees    Response Score     Eval Score
1                7                    4.24             4.78
2                13                   4.52             4.89

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Answer 1

select [Test ID], 
       [Total Employees], 
       max([Response Score]) as [Response Score],
       max([Eval Score]) as [Eval Score]
from your_table
group by [Test ID], [Total Employees]

Answer 2

您可以使用带有 a 的聚合函数GROUP BY来获取结果：

select TestId, 
   totalEmployees, 
   max(ResponseScore) responseScore, 
   max(EvalScore) EvalScore
from yourTable
group by TestId, totalEmployees;