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