Create function [dbo].[fun_getPY](@str nvarchar(4000)) returns nvarchar(4000) as begin declare @word nchar(1) declare @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 goselect [dbo].[fun_getPY]('我是中国人')我这是数据库查询首字母的算法,你看看有用吗。
List.Contains
否则就要根据首字母查询,
Create function [dbo].[fun_getPY](@str nvarchar(4000))
returns nvarchar(4000)
as
begin
declare @word nchar(1)
declare @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
goselect [dbo].[fun_getPY]('我是中国人')我这是数据库查询首字母的算法,你看看有用吗。