sql取拼音首字母

③ SQL Server 如何提取漢字首字母

代碼如下：
USE [database]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE FUNCTION [dbo].[getPinYin] (@str varchar(500) = '')
RETURNS varchar(500) AS
BEGIN
Declare @strlen int,
@return varchar(500),
@ii int,
@c char(1),
@chn nchar(1)
--//初始化變數
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('咑', 'D')
insert into @pytable values('妸', 'E')
insert into @pytable values('發', 'F')
insert into @pytable values('旮', 'G')
insert into @pytable values('鉿', '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('嘸', 'M')
insert into @pytable values('拏', 'N')
insert into @pytable values('噢', 'O')
insert into @pytable values('妑', 'P')
insert into @pytable values('七', 'Q')
insert into @pytable values('呥', 'R')
insert into @pytable values('仨', 'S')
insert into @pytable values('他', 'T')
--insert into @pytable values('屲', 'U')
--insert into @pytable values('屲', 'V')
insert into @pytable values('屲', 'W')
insert into @pytable values('夕', 'X')
insert into @pytable values('丫', 'Y')
insert into @pytable values('帀', 'Z')
select @strlen = len(@str), @return = '', @ii = 0
//循環整個字元串,用拼音的首字母替換漢字
while @ii < @strlen
begin
select @ii = @ii + 1, @chn = substring(@str , @ii, 1)
if @chn > 'z' --//檢索輸入的字元串中有中文字元
SELECT @c = max(py)
FROM @pytable
where chn <= @chn
else
set @c=@chn

set @return=@return+@c
end
return @return
END

④ SQL語句提取出中文的拼音首字母

正好最近收藏了一個 你可以看下思路
--將中文字元串轉化成文字首拼音的組合
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)
--如果非漢字字元，返回原字元
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
--函數調用實例：
select dbo.fun_getPY('中華人民共和國AAA01')

/*

----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ZHRMGHGAAA01

(1 行受影響)

*/

⑤ sql 取中文的拼音首字母

Create Function f_GetallPy(@chn nvarchar(100))
returns varchar(30)
as
begin

declare @i int,@j int,@result varchar(100)
set @result=''
set @i=len(@chn)
set @j=1
while @j<=@i
begin
set @result = @result + dbo.f_GetPy(substring(@chn,@j,1))
set @j=@j+1
end
return @result
end

這樣你就明白了吧

⑥ 如何用db2的sql寫一個獲取漢字拼音首字母的

DECLARE @str VARCHAR(100)
SET @str = '漢字的首字母'
SELECT @str AS A, dbo.fun_getPY(@str) AS B

先執行上面的那個函數，然後在執行下面的那個語句，就可以得到你要的結果了。

⑦ sql中怎麼根據漢字的拼音首字母查詢

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-- SQLServer:
---測試數據---
if object_id('[pactinfo]') is not null drop table [pactinfo]
go
create table [pactinfo]([ID] int,[pactname] varchar(4))
insert [pactinfo]
select 1,'正常' union all
select 2,'中國' union all
select 3,'做飯' union all
select 4,'加發'

---引用前輩們的一個函數---
create function f_GetPy(@str nvarchar(4000))
returns nvarchar(4000)
as
begin
declare @strlen int,@re nvarchar(4000)
declare @t table(chr nchar(1) collate Chinese_PRC_CI_AS,letter nchar(1))
insert into @t(chr,letter)
select '吖 ', 'A ' union all select '八 ', 'B ' union all
select '嚓 ', 'C ' union all select '咑 ', 'D ' union all
select '妸 ', 'E ' union all select '發 ', 'F ' union all
select '旮 ', 'G ' union all select '鉿 ', 'H ' union all
select '丌 ', 'J ' union all select '咔 ', 'K ' union all
select '垃 ', 'L ' union all select '嘸 ', 'M ' union all
select '拏 ', 'N ' union all select '噢 ', 'O ' union all
select '妑 ', 'P ' union all select '七 ', 'Q ' union all
select '呥 ', 'R ' union all select '仨 ', 'S ' union all
select '他 ', 'T ' union all select '屲 ', 'W ' union all
select '夕 ', 'X ' union all select '丫 ', 'Y ' union all
select '帀 ', 'Z '
select @strlen=len(@str),@re= ' '
while @strlen> 0
begin
select top 1 @re=letter+@re,@strlen=@strlen-1
from @t a where chr <=substring(@str,@strlen,1)
order by chr desc
if @@rowcount=0
select @re=substring(@str,@strlen,1)+@re,@strlen=@strlen-1
end
return(@re)
end

---查詢---
select
*
from
[pactinfo]
where
left(dbo.f_GetPy(pactname),1)='Z'

---結果---
ID pactname
----------- --------
1 正常
2 中國
3 做飯

（所影響的行數為 3 行）