一个sql server中用到的函数，用来取拼音

领测软件测试网 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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