sql - 将行旋转到列

Question

以下是我的原始数据: raw data

我希望数据按如下所示进行旋转:pivoted data

select cvid, cid,67554,67555,67556,67557 
from #temp2 pivot
    (
    max(lcd)
    for qid in ([67554],[67555],[67556],[67557])
    )as P

这是我尝试过的代码。需要帮助!

Answer 1

这是一种可能性，使用相当通用的语法:

select CVID, CID, sum(case when QID = 67554 then LCD else 0 end) as [67554],
                  sum(case when QID = 67555 then LCD else 0 end) as [67555],
                  sum(case when QID = 67556 then LCD else 0 end) as [67556],
                  sum(case when QID = 67557 then LCD else 0 end) as [67557] 
from test1
group by CVID, CID;

我在 SQL Server 2012 的 SSMS 中对此进行了测试。