sqlserver获得汉字首字母
USE [database]
GO
/****** Object: UserDefinedFunction [dbo].[getPinYin] Script Date: 04/24/2013 09:47:35 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE FUNCTION [dbo].[getPinYin] (@str varchar(500) = '')
RETURNS varchar(500) AS
/*-------------------用于获取中文名称的首字母---------------------------------*/
BEGIN
Declare @strlen int,
@return varchar(500),
@ii int,
@c char(1),
@chn nchar(1)
--//初始化变量
Declare @pytable table(
chn char(2) COLLATE Chinese_PRC_CS_AS NOT NULL,
py char(1) COLLATE Chinese_PRC_CS_AS NULL,
PRIMARY KEY (chn)
)
insert into @pytable values('吖', 'A')
insert into @pytable values('八', 'B')
insert into @pytable values('嚓', 'C')
insert into @pytable values(' ', 'D')
insert into @pytable values(' ', 'E')
insert into @pytable values('发', 'F')
insert into @pytable values('旮', 'G')
insert into @pytable values('铪', 'H')
--insert into @pytable values('丌', 'I')
insert into @pytable values('丌', 'J')
insert into @pytable values('咔', 'K')
insert into @pytable values('垃', 'L')
insert into @pytable values(' ', 'M')
insert into @pytable values(' ', 'N')
insert into @pytable values('噢', 'O')
insert into @pytable values(' ', 'P')
insert into @pytable values('七', 'Q')
insert into @pytable values(' ', 'R')
insert into @pytable values('仨', 'S')
insert into @pytable values('他', 'T')
--insert into @pytable values(' ', 'U')
--insert into @pytable values(' ', 'V')
insert into @pytable values(' ', 'W')
insert into @pytable values('夕', 'X')
insert into @pytable values('丫', 'Y')
insert into @pytable values(' ', 'Z')
select @strlen = len(@str), @return = '', @ii = 0
--//循环整个字符串,用拼音的首字母替换汉字
while @ii < @strlen
begin
select @ii = @ii + 1, @chn = substring(@str , @ii, 1)
if @chn > 'z' --//检索输入的字符串中有中文字符
SELECT @c = max(py)
FROM @pytable
where chn <= @chn
else
set @c=@chn
set @return=@return+@c
end
return @return
END
查询方式：select dbo.getPinYin('博客')