一个sql server中用到的函数，用来取拼音

发布时间：2018-08-18 01:28:30 所属栏目：资源来源：站长网

导读：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

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 '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 '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
go
--调用
select * from alls where dbo.f_GetPy(name)='cyml'

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