sql ºº×ÖתÊ××ÖĸƴÒô

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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)
--Èç¹û·Çºº×Ö×Ö·û£¬·µ»ØÔ­×Ö·û
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'²¾'
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'ÆØ'
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 @PY
end
--º¯Êýµ÷ÓÃʵÀý£º
--select dbo.fun_getPY('ÖлªÈËÃñ¹²ºÍ¹ú')
-----------------------------------------------------------------
--¿ÉÖ§³Ö´ó×Ö·û¼¯20000¸öºº×Ö!  
create   function   f_ch2py(@chn   nchar(1))  
  returns   char(1)  
  as  
  begin  
  declare   @n   int  
  declare   @c   char(1)  
  set   @n   =   63  
   
  select   @n   =   @n   +1,  
 &nb