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SQL Server编写函数获取汉字的拼音码

程序员文章站 2022-05-30 14:28:45
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SQL Server编写函数获取汉字的拼音码(首字母) 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

  SQL Server编写函数获取汉字的拼音码(首字母)

  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'骜' as word

  union all select 'B',N'簿'

  union all select 'C',N'错'

  union all select 'D',N'鵽'

  union all select 'E',N'樲'

  union all select 'F',N'鳆'

  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'沤'

  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'箨'

  union all select 'W',N'鹜'

  union all select 'X',N'鑂'

  union all select 'Y',N'韵'

  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

  --调用

  select dbo.fun_getpy('张三')

  --结果:ZS