sql語句 漢字轉拼音首字母


(1)-------------------------------------------------------------------------------------------------------------------------------------------------------------------------

create function GetPY(@str varchar(500))
returns varchar(500)
as
begin
declare @cyc int,@length int,@str1 varchar(100),@charcate varbinary(20)
set @cyc=1--從第幾個字開始取
set @length=len(@str)--輸入漢字的長度
set @str1=''--用於存放返回值
while @cyc<=1
begin
select @charcate=cast(substring(@str,@cyc,1) as varbinary)--每次取出一個字並將其轉變成二進制,便於與GBK編碼表進行比較
if @charcate>=0XB0A1 and @charcate<=0XB0C4
set @str1=@str1+'A'--說明此漢字的首字母為A,以下同上
else if @charcate>=0XB0C5 and @charcate<=0XB2C0
set @str1=@str1+'B'
else if @charcate>=0XB2C1 and @charcate<=0XB4ED
set @str1=@str1+'C'
else if @charcate>=0XB4EE and @charcate<=0XB6E9
set @str1=@str1+'D'
else if @charcate>=0XB6EA and @charcate<=0XB7A1
set @str1=@str1+'E'
else if @charcate>=0XB7A2 and @charcate<=0XB8C0
set @str1=@str1+'F'
else if @charcate>=0XB8C1 and @charcate<=0XB9FD
set @str1=@str1+'G'
else if @charcate>=0XB9FE and @charcate<=0XBBF6
set @str1=@str1+'H'
else if @charcate>=0XBBF7 and @charcate<=0XBFA5
set @str1=@str1+'J'
else if @charcate>=0XBFA6 and @charcate<=0XC0AB
set @str1=@str1+'K'
else if @charcate>=0XC0AC and @charcate<=0XC2E7
set @str1=@str1+'L'
else if @charcate>=0XC2E8 and @charcate<=0XC4C2
set @str1=@str1+'M'
else if @charcate>=0XC4C3 and @charcate<=0XC5B5
set @str1=@str1+'N'
else if @charcate>=0XC5B6 and @charcate<=0XC5BD
set @str1=@str1+'O'
else if @charcate>=0XC5BE and @charcate<=0XC6D9
set @str1=@str1+'P'
else if @charcate>=0XC6DA and @charcate<=0XC8BA
set @str1=@str1+'Q'
else if @charcate>=0XC8BB and @charcate<=0XC8F5
set @str1=@str1+'R'
else if @charcate>=0XC8F6 and @charcate<=0XCBF9
set @str1=@str1+'S'
else if @charcate>=0XCBFA and @charcate<=0XCDD9
set @str1=@str1+'T'
else if @charcate>=0XCDDA and @charcate<=0XCEF3
set @str1=@str1+'W'
else if @charcate>=0XCEF4 and @charcate<=0XD1B8
set @str1=@str1+'X'
else if @charcate>=0XD1B9 and @charcate<=0XD4D0
set @str1=@str1+'Y'
else if @charcate>=0XD4D1 and @charcate<=0XD7F9
set @str1=@str1+'Z'
set @cyc=@cyc+1--取出輸入漢字的下一個字
end
return @str1--返回輸入漢字的首字母
end

(2)--------------------------------------------------------------------------------------------------------------------------------------------

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)
--如果非漢字字符,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 @PY
end


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