函数|汉字|拼音|字符串drop function fun_getPY
go
SET QUOTED_IDENTIFIER ON
go
SET ANSI_NULLS ON
go
----取汉字拼音首字母的存储过程
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'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
go
IF OBJECT_ID('dbo.fun_getPY') IS NOT NULL
PRINT '<<< CREATED FUNCTION dbo.fun_getPY >>>'
ELSE
PRINT '<<< FAILED CREATING FUNCTION dbo.fun_getPY >>>'
go
SET ANSI_NULLS OFF
go
SET QUOTED_IDENTIFIER OFF
go

调用
select dbo.fun_getpy('深蓝')

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