Home > Database > Mysql Tutorial > body text

据汉字声母,要在表中找相关记录,怎么实现_MySQL

WBOY
Release: 2016-06-01 13:56:23
Original
1015 people have browsed it

根据汉字声母,要在表中找相关记录,怎么实现?比如输入"zgyh",就能找到所有“中国银行”的记录。

if exists (select * from dbo.sysobjects where id = object_id(N'[dbo].[f_GetPy]') and xtype in (N'FN', N'IF', N'TF'))
drop function [dbo].[f_GetPy]
GO

--创建取拼音函数
create function f_GetPy(@Str nvarchar(400))
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 @t 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 '发','F'
union all select '旮','G' union all select '铪','H'
union all select '丌','J' union all select '咔','K'
union all select '垃','L' union all select '呒','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 chrorder by chr desc
if @@rowcount=0
select @re=substring(@str,@strlen,1)+@re,@strlen=@strlen-1
end
return(@re)
end
go

--测试
select dbo.f_GetPy('东莞市') as 东莞市,dbo.f_GetPy('ab中c国人') as 中国人

--以后查询的时候,就可以调用上面的函数来实现汉字模糊查询

select * from 表 where dbo.f_getpy(字段)='zgyh'

Related labels:
source:php.cn
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Popular Tutorials
More>
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn:Public welfare online PHP training,Help PHP learners grow quickly!