sql获取汉字的拼音首字母
if exists (select * from sysobjects where id = object_id(N'[fn_ChineseToSpell]') and xtype in (N'FN', N'IF', N'TF')) www.2cto.com
drop function [fn_ChineseToSpell]
GO
/*创建取拼音首字母函数*/
create function [dbo].[fn_ChineseToSpell](@strChinese varchar(500)='')
returns varchar(500)
as
begin /*函数实现开始*/
declare @strLen int,@return varchar(500),@i int
declare @n int,@c char(1),@chn nchar(1)
select @strLen=len(@strChinese),@return='',@i=0
while @i<@strLen
begin /*while循环开始*/
select @i=@i+1,@n=63,@chn=substring(@strChinese,@i,1)
if @chn>'z'/*原理:“字符串排序以及ASCII码表”*/
select @n = @n +1,@c =case chn when @chn then char(@n) else @c end from(select top 27 * from (select chn = '吖' union all select '八' union all select '嚓' union all select ' ' union all select ' ' union all select '发' union all select '旮' union all select '铪' union all select '丌' /*because have no 'i'*/ union all select '丌' union all select '咔' union all select '垃' union all select ' ' union all select ' ' union all select '噢' union all select ' ' union all select '七' union all select ' ' union all select '仨' union all select '他' union all select ' ' /*no 'u'*/ union all select ' ' /*no 'v'*/ union all select ' ' union all select '夕' union all select '丫' union all select ' ' union all select @chn) as a order by chn COLLATE Chinese_PRC_CI_AS ) as b
else
set @c=@chn
set @return=@return+@c
end /*while循环结束*/
return(@return)
end /*函数实现结束*/
使用方式：
select dbo.[fn_ChineseToSpell]('魏保光')