SQL轉置成多列行

Question

我在FIG1數據，需要調換的列行作爲Fig2（所需的結果）。

這將是多年和時期

Answer 1

select Division, Period, 'Total Cost' as Description, TotalCost as Value 
from MyTable 
union 
select Division, Period, 'Discount' as Description, Discount as Value 
from MyTable 
union 
select Division, Period, 'Net Sales' as Description, NetSales as Value 
from MyTable 
union 
select Division, Period, 'Net Returns' as Description, NetReturns as Value 
from MyTable 
union 
select Division, Period, 'Gross Sales' as Description, GrossSales as Value 
from MyTable 
union 
select Division, Period, 'Gross Returns' as Description, GrossReturns as Value 
from MyTable 

你也可以把這個包在一個視圖，然後做一個選擇上，你需要

Answer 2

在任何平臺上的任何排序或篩選視圖UNION ALL將會工作。某些平臺有UNPIVOT，但您沒有說明您正在使用的是什麼。

SELECT Division, Period, 'Total Cost' AS DESCRIPTION, TotalCost as Value 
FROM A_TABLENAME_YOU_DID_NOT_SAY 

UNION ALL 

SELECT Division, Period, 'Discount' AS DESCRIPTION, DISCOUNT AS Value 
FROM A_TABLENAME_YOU_DID_NOT_SAY 

UNION ALL 

SELECT Division, Period, 'Net Sales' AS Descripion, NETSALES AS Value 
FROM A_TABLENAME_YOU_DID_NOT_SAY 

UNION ALL 

SELECT Division, Period, 'Net Returns' AS DESCRIPTION, NETRETURNS AS Value 
FROM A_TABLENAME_YOU_DID_NOT_SAY 

UNION ALL 

SELECT Division, Period, 'Gross Sales' AS DESCRIPTION, GROSSSALES AS Value 
FROM A_TABLENAME_YOU_DID_NOT_SAY 

UNION ALL 

SELECT Division, Period, 'Gross Returns' AS DESCRIPTION, GROSSRETURNS AS Value 
FROM A_TABLENAME_YOU_DID_NOT_SAY