zoukankan      html  css  js  c++  java
  • sql 中文转拼音首字母

    http://blog.csdn.net/zhanglong_longlong/article/details/46772571

    --可支持大字符集20000个汉字!
    
    create function f_ch2py(@chn nchar(1))
    returns char(1)
    as
    begin
    declare @n int
    declare @c char(1)
    set @n = 63
    
    select @n = @n +1,
           @c = case chn when @chn then char(@n) else @c end
    from(
    select top 27 * from (
         select chn = 
    '吖' union all select
    '八' union all select
    '嚓' union all select
    '咑' union all select
    '妸' union all select
    '发' union all select
    '旮' union all select
    '铪' union all select
    '丌' union all select  --because have no 'i'
    '丌' union all select
    '咔' union all select
    '垃' union all select
    '嘸' union all select
    '拏' union all select
    '噢' union all select
    '妑' union all select
    '七' union all select
    '呥' union all select
    '仨' union all select
    '他' union all select
    '屲' union all select  --no 'u'
    '屲' union all select  --no 'v'
    '屲' union all select
    '夕' union all select
    '丫' union all select
    '帀' union all select @chn) as a
    order by chn COLLATE Chinese_PRC_CI_AS 
    ) as b
    return(@c)
    end
    go
    
    select dbo.f_ch2py('中')  --Z
    select dbo.f_ch2py('国')  --G
    select dbo.f_ch2py('人')  --R
    select dbo.f_ch2py('镆')  --M
    go
    -----------------调用
    CREATE FUNCTION F_GetHelpCode (
            @cName VARCHAR(20) )
    RETURNS VARCHAR(12)
    AS
    BEGIN
       DECLARE @i SMALLINT, @L SMALLINT , @cHelpCode VARCHAR(12), @e VARCHAR(12), @iAscii SMALLINT
       SELECT @i=1, @L=0 , @cHelpCode=''
       while @L<=12 AND @i<=LEN(@cName) BEGIN
          SELECT @e=LOWER(SUBSTRING(@cname,@i,1))
          SELECT @iAscii=ASCII(@e)
          IF @iAscii>=48 AND @iAscii <=57 OR @iAscii>=97 AND @iAscii <=122 or @iAscii=95 
           SELECT @cHelpCode=@cHelpCode  +@e
          ELSE
          IF @iAscii>=176 AND @iAscii <=247
                SELECT @cHelpCode=@cHelpCode  + dbo.f_ch2py(@e)
            ELSE SELECT @L=@L-1
          SELECT @i=@i+1, @L=@L+1 END 
        RETURN @cHelpCode
    END
    GO
    
    --调用
    select dbo.F_GetHelpCode('大力')
  • 相关阅读:
    【瞎口胡】CDQ 分治
    题解 Luogu P2934 [USACO09JAN]Safe Travel G
    【瞎口胡】线段树优化建图
    git did not exit cleanly (exit code 128)如何解决
    转贴Linux服务器性能评估
    小记 SqlHelper
    zookeeper安装部署
    zookeeper原理介绍
    zookeeper基本操作
    zookeeper四字命令
  • 原文地址:https://www.cnblogs.com/lxwphp/p/8183426.html
Copyright © 2011-2022 走看看