This is a question maybe already asked.
My query is
SELECT Year, Month, Line, SUM(value) as total FROM myTable
I've the following query result table:
Year Month Line Total
-------------------------------------------
2011 2 B1 5203510.00
2011 3 B1 2228850.00
2011 4 B1 7258075.00
2011 5 B1 6305370.00
2011 6 B1 5540180.00
2011 7 B1 7624430.00
2011 8 B1 4042300.00
2011 9 B1 3308870.00
2011 10 B1 4983875.00
2011 11 B1 4636500.00
2011 12 B1 3987350.00
2012 1 B1 518400.00
I would like the following:
Year Line Jan Feb Mar Apr ..... December
2011 B1 0 52035 2228 725 ..... 3987350
2012 B1 51840 ... ... ....
Please, can you help me how to translate query SQL from rows to columns?
Essentially, you need to PIVOT your data. There are several examples on SO on how to do this. The tricky part is to convert the month number
to a month name
.
This is accomplished in the example with DATENAME(month, DateAdd(month, [Month], 0)-1)
SQL Statement
SELECT *
FROM (
SELECT Year, Line, Total, mnt = DATENAME(month, DateAdd(month, [Month], 0)-1)
FROM myTable
) mt
PIVOT (MAX(Total) FOR [mnt] IN ([January],[February],[March],[April],[May],[June],[July],[August],[September],[October],[November],[December])) AS PVT
Test script
;WITH myTable AS (
SELECT * FROM (VALUES
(2011 , 2 , 'B1', 5203510.00)
, (2011 , 3 , 'B1', 2228850.00)
, (2011 , 4 , 'B1', 7258075.00)
, (2011 , 5 , 'B1', 6305370.00)
, (2011 , 6 , 'B1', 5540180.00)
, (2011 , 7 , 'B1', 7624430.00)
, (2011 , 8 , 'B1', 4042300.00)
, (2011 , 9 , 'B1', 3308870.00)
, (2011 , 10 , 'B1', 4983875.00)
, (2011 , 11 , 'B1', 4636500.00)
, (2011 , 12 , 'B1', 3987350.00)
, (2012 , 1 , 'B1', 518400.00)
) AS myTable (Year, Month, Line, Total)
)
SELECT *
FROM (
SELECT Year, Line, Total, mnt = DATENAME(month, DateAdd(month, [Month], 0)-1)
FROM myTable
) mt
PIVOT (MAX(Total) FOR [mnt] IN ([January],[February],[March],[April],[May],[June],[July],[August],[September],[October],[November],[December])) AS PVT
What you're trying to do is pivot the data. I will just use the Month and Total (relevant) columns.
If you're using MS SQL 2008 or up:
SELECT [1] AS Jan, [2] AS Feb, .. [12] AS Dec,
Total
FROM ( SELECT Month, Total FROM tableA ) AS SOURCE
PIVOT
( MAX(Total) AS Total
FOR
Month IN ([1],[2],...[12]) ) AS PIVOT
PIVOT是您寻求的T-SQL关键字。
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