SQL Server中取漢字拼音的函數

來源:互聯網
上載者:User

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)

--如果非漢字字元,返回原字元

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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