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 @[email protected],@[email protected]
from @t a where chr<=substring(@str,@strlen,1)
order by chr desc
if @@rowcount=0
select @re=substring(@str,@strlen,1)[email protected],@[email protected]
end
return(@re)
end
go
--调用
select * from alls where dbo.f_getpy(name)='cyml'
