取汉字的拼音简码 首字母

鉴于很多兄弟都需要，所以放一段小代码：取汉字的拼音简码 sql server 函数

if exists(select 1 from sysobjects where name='fun_GetPY')

drop fun_GetPY
go
create function 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
                  )
       when (@word>'a' and @word<'Z')
       then lower(@word)
       else ''
       end)
    set @str=right(@str,len(@str)-1)
  end
  SET @PY = replace(replace(@PY,'(',''),')','')
  return @PY

end
go