Question

我有一个包含地址详情的表格如下。 +表视图

-ClientID|Address Code|EMAIL

4566666|02|eeeee@gmail.com

4566666|03|77eee@gmail.com

1566656|01|HHHHH@gmail.com

1566656|02|JJJJJ@gmail.com

1566656|03|BBBBB@gmail.com

预期结果：

ClientID|Address code 1|EMAIL 1| Address code 2| Email 2|Address code 3| Email 3|

4566666|02|eeeee@gmail.com|03|77eee@gmail.com

1566656|01|HHHHH@gmail.com|02|JJJJJ@gmail.com|03|BBBBB@gmail.com

Answer 1

with cte as (
    select
        row_number() over(partition by "ClientID" order by "AddressCode") AS row_num,
        "ClientID",
        "AddressCode",
        "EMAIL"
    from Table1
)
select
    "ClientID",
    max(case when row_num = 1 then "AddressCode" end) as AddressCode1,
    max(case when row_num = 1 then "EMAIL" end) as Email1,
    max(case when row_num = 2 then "AddressCode" end) as AddressCode2,
    max(case when row_num = 2 then "EMAIL" end) as Email2,
    max(case when row_num = 3 then "AddressCode" end) as AddressCode3,
    max(case when row_num = 3 then "EMAIL" end) as Email3
from cte
group by "ClientID"

sql fiddle demo

SQL查询到组地址表，具有相同客户端但具有不同地址代码的多个条目

1 个答案: