return all the possible model of a string
Hi allI would like to return all possible models from a given string, for example when a string is "ABC", I should get
ABC
ADJUSTED COST BASE
TRAY
BCA
CAB
CBA
as well as
AAA
BBB
CCC
ABB
VAC
BAA
BCC
CAA
CBB
I could write this:
Select permut
from (select replace (SYS_CONNECT_BY_PATH (e, ',') ',') permut)
of (SUBSTR ('ABC', level 1) select e)
of the double
connect by level < = length ('ABC'))
connect e nocycle! e = prior)
where length (permut) = 3
but the output is just:
ABC
ADJUSTED COST BASE
TRAY
BCA
CAB
CBA
any ideas? for ora10g or 11g sql/plsql
Thank you
This is similar to the solution of Frank, but somewhat simpler:
with indata as (
select 'ABC' txt from dual
), chrs AS (
select substr(txt,level,1) chr
FROM indata
CONNECT BY level <= LENGTH(txt)
)
select replace(sys_connect_by_path(chr, '/'), '/', '') permut from chrs
where connect_by_isleaf = 1
connect by level <= (select length(txt) from indata);
[Edit: I guess the main difference is that I don't see the need to SEPARATE.]
Published by: stew Ashton on 18 January 2013 13:58
Tags: Database
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