SQL Pivot，不知道要进行数据透视的值

Question

下面是我的代码

Select  FromCity, TicketID 
From    #Main

下面是结果

FromCity    TicketID 
London      Ticket4321  
Miami       Ticket4321
Singapore   Ticket4321
Sydney      Ticket1234

我不能使用枢轴，因为我不知道城市的所有名称。 我需要我的结果看起来像这样。

TicketID    FromCities
Ticket4321  London/Miami/Singapore
Ticket1234  Sydney  

Answer 1

您可以使用

而不是使用数据透视

CREATE TABLE Table1
    ([FromCity] varchar(9), [Ticket] varchar(10))
;

INSERT INTO Table1
    ([FromCity], [Ticket])
VALUES
    ('London', 'Ticket4321'),
    ('Miami', 'Ticket4321'),
    ('Singapore', 'Ticket4321'),
    ('Sydney', 'Ticket1234')

select
    Ticket,
    stuff((
        select distinct  '/' + t.[FromCity ]
        from Table1 t

        where t.Ticket = t1.Ticket

        for xml path('')
    ),1,1,'') as name_csv
from Table1 t1
group by Ticket

输出

TicketID    FromCities
Ticket4321  London/Miami/Singapore
Ticket1234  Sydney