将一个单轴旋转成两行 - T-SQL

Question

我正在尝试取消旋转下面的行，但我遇到了麻烦。有什么帮助吗？

输入：

Date        Time    Country_Championship    Game      Home_Team   Away_Team
----------------------------------------------------------------------------
19/07/2020  18:45   Albania: Superliga  Bylis Vs Laci   Bylis       Laci

输出：

Date        Time    Country_Championship    Game        Team
---------------------------------------------------------------
19/07/2020  18:45   Albania: Superliga  Bylis Vs Laci   Bylis
19/07/2020  18:45   Albania: Superliga  Bylis Vs Laci   Laci

我尝试过的：

SELECT 
    u.[Date], u.[Time], 
    u.[Country_Championship],
    u.[Game],
    u.[Home_Team], u.[Away_Team],
    u.details
FROM 
    [Soccer_Analytics].[dbo].[Ins_UpcomingGames_Temp] t
UNPIVOT
    (details FOR [Date], [Time], [Country_Championship], [Game] IN ([Home_Team], [Away_Team])) u;

Answer 1

在 T-SQL 中，我建议为此使用横向连接：

select x.*
from [Soccer_Analytics].[dbo].[Ins_UpcomingGames_Temp] t 
cross apply (values
    (date, time, country_championship, game, home_team),
    (date, time, country_championship, game, away_team)
) as x(date, time, country_championship, game, team)

将一个单轴旋转成两行 - T-SQL

Unpivot a single into two rows - T-SQL

tsql

sql-server

join

unpivot