SQL Server 2008 中的行作为列

Question

我正在使用 SQL Server 2008。我有一个临时 table returns 这个结果

Location      Month        value
US          January         10
US          February        10
US          March           10
US          April           10
US          May             10
US          June            10
UK          January         10
UK          January         10
UK          February        10
UK          February        10
UK          March           10
UK          March           10
UK          April           10
UK          April           10
UK          May             10
UK          May             10
UK          June            10
UK          June            10

我想得到如下结果

Location    January February    March   Q1  April   May June    Q2
US              10        10       10   30     10    10   10    30
UK              20        20       20   60     20    20   20    60

如何使用SQL Server 2008查询得到以上结果？

Answer 1

你可以使用这个查询，你必须完成它以满足你的需要，所有遗漏 months/quarters:

select  Location
        ,sum(case when [Month]  = 'January'  then value else 0 end)  as January
        ,sum(case when [Month]  = 'February' then value else 0 end)  as February
        ,sum(case when [Month]  = 'March'    then value else 0 end)  as March
        ,sum(case when [Month] in ( 'January', 'February', 'March')
                                             then value else 0 end) as Q1
        ...
        -- Repeat months...
        ...
        ,sum(value) as AllMonthTotal
from    myTempTable
group by Location

-- UNION to get rowwise total
union
select  'TOTAL'
        ,sum(case when [Month]  = 'January'  then value else 0 end)  as January
        ,sum(case when [Month]  = 'February' then value else 0 end)  as February
        ,sum(case when [Month]  = 'March'    then value else 0 end)  as March
        ,sum(case when [Month] in ( 'January', 'February', 'March')
                                             then value else 0 end) as Q1
        ...
        -- Repeat months...
        ...
        ,sum(value) as AllMonthTotal
from    myTempTable

还有PIVOT方法：

Using PIVOT in SQL Server 2008

MSSQL dynamic pivot column values to column header

SQL Server 2008 中的行作为列

Row as column in SQL Server 2008

sql

sql-server

sql-server-2008