SQL Server 2008不同的行分组

Question

我正在使用Microsoft Sql Server 2008。 使用以下查询查询某些行，但可以排列从每个表中排序的不同行的行。

select id1,c1,id2,c2,id3,c3
from t1 
left join t2 on t2.fk = t1.pk
left join t3 on t3.fk = t1.pk
order by id3

Answer 1

您需要对id1，id2和id3

进行排序

编辑：更新了其他测序字段

;WITH data AS
(
    select id1,c1,id2,c2,id3,c3, 
           ROW_NUMBER() OVER (PARTITION BY id1, id2 ORDER BY id2) as id2seq,
           ROW_NUMBER() OVER (PARTITION BY id1, id2, id3 ORDER BY id3) as id3seq    
    from t1   
    left join t2 on t2.fk = t1.pk  
    left join t3 on t3.fk = t1.pk  
)
select id1, c1, id2, c2, id3, c3
from data
order by id1, id2seq, id3seq

编辑：完成了对完全结果的查询

;with data as( 
    select pid 
        , pname 
        , cid 
        , cname 
    from #t1 t1 
    left join #t2 t2 on t2.fk_pid = t1.pid 
), cte AS 
( 
    select pid 
          , eid 
          , ename 
    from #t1 t1 
         left join #t3 t3 on t3.fk_pid = t1.pid
), combine AS
(
    select d.pid 
        , pname 
        , cid 
        , cname
        , ROW_NUMBER() over(partition by d.pid, cid order by cid) as seq 
        , eid 
        , ename 
      from data d join cte c on d.pid = c.pid 
) 
select pid, pname, cid, cname, eid, ename 
from combine 
order by pid, seq, cid