Question

在Sql Server 2008中

我的选择查询结果如下所示。

Col1             Col2          Col3
------------------------------------------
1001             HO            160.00
1001             HO             40.00
1001             HO            200.00
1002             HO             10.00
1002             HO            130.00
1003             HO             10.00
1003             HO            130.00
1003             HO            130.00
1003             HO            230.00

现在，我想要选择结果如下（请在Col2中找到更改）

Col1             Col2          Col3
------------------------------------------
1001             HO1            160.00
1001             HO2             40.00
1001             HO3            200.00
1002             HO1             10.00
1002             HO2            130.00
1003             HO1             10.00
1003             HO2            130.00
1003             HO3            130.00
1003             HO4            230.00

那边的专家......请帮我提取上面的数据。

Answer 1

我刚刚创建了示例数据，并为您提供了查询。因此，您可以在原始查询中实现

declare @t table(id int,Name varchar(10))

    insert into @t (id,name)values (1,'HO')
    insert into @t (id,name)values (1,'HO')
    insert into @t (id,name)values (2,'HO')
    insert into @t (id,name)values (2,'HO')

    select id,name +CAST(row_number()OVER(PARTITION BY id order by name )AS VARCHAR)rn from @t

Answer 2

试试这个

select col1,
col2+cast(row_number() over (partition by col1 order by col1) as varchar(10)) as col2, 
col3 from your_table

Answer 3

SELECT  Col1,
        Col2 + CAST([Row] AS VARCHAR(10)) Col2,
        Col3
FROM    (
SELECT  *,ROW_NUMBER() OVER (PARTITION BY Col1 ORDER BY Col1) [Row]
FROM    [Table]) LU

这也可以帮到你。

列中各个值的序列号

3 个答案: