sql - 将 2 行合并为 1 行

Question

我有这样的数据

MemberId | VesselName | Cargo | Date
B001     | Ship A     | 500   | 2013/11/12
B001     | Ship X     | 250   | 2013/11/20
B003     | Ship Y     | 300   | 2013/11/11

我想要这样的查询结果

MemberId | VesselName    | Cargo | Date
B001     | Ship A Ship X | 750   | 2013/11/12 2013/11/20
B003     | Ship Y        | 300   | 2013/11/11

Answer 1

困难的部分是将许多 VesselNames 放在一起......

如果每个成员最多有 2 艘船，您可以执行以下操作：

select MemberId, 
       min(VesselName) + " " + max(VesselName) as Names, 
       sum(Cargo) as TotalCargo,
       cast(min(Date) as char(20)) + ' to ' + cast(max(Date) as char(20)) as Dates
from YourTable
group by MemberId