--
>建立函式：
create
function
f_getpy(
@str
nvarchar
(4000
)) returns
nvarchar
(4000
) as
begin
declare
@strlen
int,
@renvarchar
(4000
) declare
@ttable
(chr
nchar(1
) collate chinese_prc_ci_as,letter
nchar(1
)) insert
into
@t(chr,letter)
select'吖
', 'a
'union
allselect'八
', 'b
'union
allselect'嚓
', 'c
'union
allselect'咑
', 'd
'union
allselect'妸
', 'e
'union
allselect'發
', 'f
'union
allselect'旮
', 'g
'union
allselect'鉿
', 'h
'union
allselect'丌
', 'j
'union
allselect'咔
', 'k
'union
allselect'垃
', 'l
'union
allselect'嘸
', 'm
'union
allselect'拏
', 'n
'union
allselect'噢
', 'o
'union
allselect'妑
', 'p
'union
allselect'七
', 'q
'union
allselect'呥
', 'r
'union
allselect'仨
', 's
'union
allselect'他
', 't
'union
allselect'屲
', 'w
'union
allselect'夕
', 'x
'union
allselect'丫
', 'y
'union
allselect'帀
', 'z
'select
@strlen
=len
(@str
),@re='
'while
@strlen
>
0begin
select
top1
@re=
letter
+@re
,@strlen
=@strlen-1
from
@ta
where
chr
<=
substring
(@str
,@strlen,1
) order
bychr
desc
if@@rowcount=0
select
@re=
substring
(@str
,@strlen,1
)+@re,
@strlen
=@strlen-1
endreturn
(@re
) end
go--
>呼叫
select
*from
tb where
dbo.f_getpy(name)='
l'
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