SQL Server 2000 row numbering

Question

我试图获得一个连续的行编号，但无论我尝试的是不工作。这是我的查询

select
    l.seq, l.mn_no as mn_no, l.sb_no as sb_no,
    l.dp_no as dp_no,
    sum(costprice) as amt
from 
    dbo.mac_pur_tempdetail d
inner join 
    dbo.mac_pur_tempheader h on d.header_id = h.header_id
                              and h.ref = 'SAH1FIHC'
inner join 
    dbo.mac_actlocmap l on l.loc_main = d.loc_id
                         and l.description = 'PUR'
group by  
    l.seq, l.mn_no, l.sb_no, l.dp_no

下面是查询的结果

1   4110        30          0000        17.5000
4   4110        20          0000        3.6000
6   4110        40          0000        6.0000
7   4110        10          0000        1.8000
14  4110        25          0000        3.6000
15  4110        50          0000        1.8000

我试着

select
    (select count(seq)  
     from dbo.mac_actlocmap s
     where s.seq <= a.seq and a.mn_no = s.mn_no) as new_seq,
    * 
from 
    (select
         l.seq, l.mn_no as mn_no,
         l.sb_no as sb_no, l.dp_no as dp_no,
         sum(costprice) as amt
     from 
         dbo.mac_pur_tempdetail d
     inner join 
         dbo.mac_pur_tempheader h on d.header_id = h.header_id
                                  and h.ref = 'SAH1FIHC'
     inner join 
         dbo.mac_actlocmap l on l.loc_main = d.loc_id
                              and l.description = 'PUR'
     group by  
         l.seq, l.mn_no, l.sb_no, l.dp_no) a

但是结果是

1   1   4110        30          0000        17.5000
2   4   4110        20          0000        3.6000
3   6   4110        40          0000        6.0000
4   7   4110        10          0000        1.8000
7   14  4110        25          0000        3.6000
8   15  4110        50          0000        1.8000

Answer 1

您的计数是对dbo.mac_actlocmap中未聚合和未过滤行的计数。但是，您正在比较子查询与的聚合和过滤器。

对于这种复杂性，使用临时表。这比在SQL Server 2000

上模拟ROW_NUMBER所需的三角连接执行两次完全相同的查询要容易得多。

select
l.seq,
l.mn_no as mn_no,
l.sb_no as sb_no,
l.dp_no as dp_no,
sum(costprice) as amt
INTO #foo
from dbo.mac_pur_tempdetail d
inner join dbo.mac_pur_tempheader h
on d.header_id = h.header_id
and h.ref = 'SAH1FIHC'
inner join dbo.mac_actlocmap l
on l.loc_main = d.loc_id
and l.description = 'PUR'
group by  l.seq,l.mn_no,l.sb_no,l.dp_no
select
(select count(seq) from #foo s
where s.seq <= a.seq and a.mn_no = s.mn_no) as new_seq,
* from #foo a