SQL Server 快速生成汉字的首拼字母的函数(经典)

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代码如下:

 
USE [tempdb] 
GO 
/****** Object: UserDefinedFunction [dbo].[fun_getPY] Script Date: 05/23/2012 18:03:45 ******/ 
SET ANSI_NULLS ON 
GO 
SET QUOTED_IDENTIFIER ON 
GO 
/* 
获取汉字的首拼音 
如果是非汉字字符 
*/ 
ALTER function [dbo].[fun_getPY] 
( 
@str nvarchar(4000) 
) 
returns nvarchar(4000) 
as 
begin 
declare @word nchar(1),@PY nvarchar(4000) 
set @PY='' 
while len(@str)>0 
begin 
set @word=left(@str,1) 
--如果非汉字字符，返回原字符 
set @PY=@PY+(case when unicode(@word) between 19968 and 19968+20901 
then ( 
select top 1 PY 
from 
( 
select 'A' as PY,N'驁' as word 
union all select 'B',N'簿' 
union all select 'C',N'錯' 
union all select 'D',N'鵽' 
union all select 'E',N'樲' 
union all select 'F',N'鰒' 
union all select 'G',N'腂' 
union all select 'H',N'夻' 
union all select 'J',N'攈' 
union all select 'K',N'穒' 
union all select 'L',N'鱳' 
union all select 'M',N'旀' 
union all select 'N',N'桛' 
union all select 'O',N'漚' 
union all select 'P',N'曝' 
union all select 'Q',N'囕' 
union all select 'R',N'鶸' 
union all select 'S',N'蜶' 
union all select 'T',N'籜' 
union all select 'W',N'鶩' 
union all select 'X',N'鑂' 
union all select 'Y',N'韻' 
union all select 'Z',N'咗' 
) T 
where word>=@word collate Chinese_PRC_CS_AS_KS_WS 
order by PY ASC 
) 
else @word 
end) 
set @str=right(@str,len(@str)-1) 
end 
return upper(@PY) 
end 

代码如下:

 
select dbo.[fun_getPY]('中国人') 首拼 

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