Question

1-A
2-B
3-C
Etc etc

请帮我写一下这个功能。

Answer 1

尝试此逻辑

DECLARE @MyNum INT = 1
SELECT 
    CharVal = CHAR(64+@MyNum), 
    InputNum = @MyNum

如果要生成完整的列表

，请尝试此操作

DECLARE @Start INT = 1

;WITH CTE
AS
(
   SELECT 
      CharVal = CHAR(64+@Start), 
      SeqNo = @Start

   UNION ALL

   SELECT
      CharVal = CHAR(64+SeqNo+1),
      SeqNo = SeqNo+1
      FROM CTE
         WHERE CHAR(64+SeqNo+1) <> 'Z'

)
SELECT
   *
   FROM CTE

将@Start中的值设置为您希望开始的位置

Answer 2

DECLARE @alpha VARCHAR(MAX)
SET @alpha = 'M'
select CASE WHEN CAST(CAST(@alpha as VARBINARY) AS INT) >= 64 THEN CAST(CAST(@alpha as VARBINARY) AS INT) - 64 END

试试这个，只需将Alphabet转换为整数。您可以循环运行它并获得所需的输出。

Answer 3

在Postgres中你可以做到：

select nr, chr(nr + 64)
from generate_series(1,26) as t(nr)
order by nr;

如何将数字转换为字母？

3 个答案: