Question

我有一个表，其中有10个记录可用（使用批量插入插入记录）现在我想要选择一些带有行号和一些特定条件的记录。不管怎样我们得到记录的实际行号。

批量插入代码

BULK INSERT WorkDataLoad FROM 'D:\NPfiles\xyz.txt' with ( TABLOCK )

表记录线

Record1
Record2
Record3
Record4
Record5
Record6
Record7
Record8
Record9
Record10

我试过这段代码，结果不太好

Select ROW_NUMBER() OVER(ORDER BY RecordLine DESC) AS RecordLine 
from WorkDataLoad
where Recordline='Record1' or Recordline='Record3' or Recordline='Record5' 
      or Recordline='Record6' or Recordline='Record7' or Recordline='Record10'

结果

RowNumber Recordline

     1      Record1
     2      Record3
     3      Record5
     4      Record6
     5      Record7
     6      Record10

但我想要这样的记录

RowNumber Recordline

     1      Record1
     3      Record3
     5      Record5
     6      Record6
     7      Record7
    10      Record10

Answer 1

使用row_number()首先分配行号，然后仅选择所需的行：

with cteRows as
(
   Select 
      RecordLine,
      rn = ROW_NUMBER() OVER (ORDER BY RecordLine DESC)
   from WorkDataLoad
)
select 
    rn, RecordLine 
from cteRows
where 
    Recordline IN ('Record1', 'Record3', 'Record5', 'Record6', 'Record7', 'Record10')

如果您遇到了对“1”和“10”的排序问题，请使用类似的内容（假设每个RecordLine以“Record”开头）：

with cteRows as
(
   Select 
      RecordLine,
      rn = ROW_NUMBER() 
             OVER (ORDER BY CAST(SUBSTRING(RecordLine, 7, LEN(RecordLine) - 6) as int)  DESC)
   from WorkDataLoad
)
select 
    rn, RecordLine 
from cteRows
where 
    Recordline IN ('Record1', 'Record3', 'Record5', 'Record6', 'Record7', 'Record10')

Answer 2

SELECT  t.*
FROM    ( SELECT    ROW_NUMBER() OVER ( ORDER BY RecordLine DESC ) AS RowNo,
                    Recordline 
          FROM      WorkDataLoad
        ) AS t
WHERE   t.Recordline = 'Record1'
        OR t.Recordline = 'Record3'
        OR t.Recordline = 'Record5'
        OR t.Recordline = 'Record6'
        OR t.Recordline = 'Record7'
        OR t.Recordline = 'Record10'

Answer 3

如果我理解正确，你需要这个：

SELECT * FROM(
    SELECT ROW_NUMBER () OVER (ORDER BY id) RowNumer,RecordLine FROM WorkDataLoad ) qry1
WHERE RecordLine IN ('Record1', 'Record3', 'Record5', 'Record6', 'Record7', 'Record10')

如果您的表格包含2列或更多列（id，RecordLine＆amp; ...）

Answer 4

select recordline,rn
Select 
      RecordLine,
      rn = ROW_NUMBER() OVER (ORDER BY RecordLine DESC)
   from WorkDataLoad) a 
inner join WorkDataLoad b
on a.RecordLine=b.RecordLine


where 

a.Recordline in ('Record1' ,'Record3' ,'Record5' ,'Record6' ,'Record7' ,'Record10')

获取sql中记录的实际行号

4 个答案: