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--第1个
;WITH CTE AS(
SELECT ch = CHAR(n) FROM dbo.Nums
WHERE n BETWEEN 0x30 AND 0x39
OR n BETWEEN 0x41 AND 0x5a
)
SELECT code = a.ch + b.ch
FROM CTE a
CROSS JOIN CTE b
--第2个
;WITH CTE AS(
SELECT ch = CHAR(n) FROM dbo.Nums
WHERE n BETWEEN 0x30 AND 0x39
OR n BETWEEN 0x41 AND 0x5a
)
SELECT code = a.ch + b.ch
FROM CTE a
INNER JOIN CTE b
ON a.ch <= b.ch
select flag=A+B from (select A=(char(number)) from spt_values where type='p'
and patindex('%[a-zA-A0-9]%',char(number))>0)A,
(select B=(char(number)) from spt_values where type='p'
and patindex('%[a-zA-A0-9]%',char(number))>0)B
select
a.aaa + b.aaa
from
(select char(number) as aaa from master..spt_values where type = 'p' and ((number between 48 and 57) or (number between 65 and 90))) a
,(select char(number) as aaa from master..spt_values where type = 'p' and ((number between 48 and 57) or (number between 65 and 90))) b
order by a.aaa + b.aaa
/*
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
.
.
.
ZK
ZL
ZM
ZN
ZO
ZP
ZQ
ZR
ZS
ZT
ZU
ZV
ZW
ZX
ZY
ZZ
(1296 行受影响)
*/