水平多列 - 按月分组

Question

我有一些SQL其中returns以下信息：

Date	Month	Balance	Transactions
01/01/2020	January	20	Test 1
02/01/2020	January	21	Test 2
01/02/2020	February	20	Test 3
02/02/2020	February	21	Test 4

我想获取信息，所以是这样的：

Date	January	Balance	Transactions	Date	February	Balance	Transactions
01/01/2020	January	20	Test 1	01/02/2020	February	20	Test 3
02/01/2020	January	21	Test 2	02/02/2020	February	21	Test 4

有什么想法吗？我试过 Pivots，它很接近，但不存在。

提前感谢您的帮助！

Answer 1

如果我没理解错的话，你可以结合使用条件聚合 row_number():

select max(case when month = 'January' then date end),
       'January',
       max(case when month = 'January' then balance end),
       max(case when month = 'January' then transactions end),
       max(case when month = 'February' then date end),
       'February',
       max(case when month = 'February' then balance end),
       max(case when month = 'February' then transactions end)           
from (select t.*,
             row_number() over (partition by month order by date) as seqnum
      from t
     ) t
group by seqnum
order by seqnum;

水平多列 - 按月分组

Multiple columns horizontally - Group By month

sql

tsql

sql-server

pivot