How to Handle Dynamic Pivoting with a single SQL?

Question

I was searching for a single SQL who can dynamically understands the pivoting members in the data, I saw several ways of doing Pivoting depending on the version, some are really hard to understand but just two options upto now seams to be flexable enough to do dynamic pivoting, right?
1- For this option you have to write PL/SQL block to build up the dynamic single SQL query, I also find this approach very easy to understand. :)
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::NO::P11_QUESTION_ID:766825833740
2- 11.1 's PIVOT new feature with PIVOT XML and ANY clause, a SINGLE SQL and easy to understand but returns XMLTYPE data, another step to parse to produce the report is needed.
http://www.oracle-developer.net/display.php?id=506
Below is a 10g Model Clause example, but here instead of pivoting by A1-A2-A3 staticly I want to have these values by a distinc subquery for example;
create table test(id varchar2(2), des varchar2(4), t number);
INSERT INTO test values('A','a1',12);
INSERT INTO test values('A','a2',3);
INSERT INTO test values('A','a3',1);
INSERT INTO test values('B','a1',10);
INSERT INTO test values('B','a2',23);
INSERT INTO test values('C','a3',45);
commit;
SELECT * FROM test;
ID DES T
A a1 12
A a2 3
A a3 1
B a1 10
B a2 23
C a3 45
select distinct i, A1, A2, A3
from test c
model
ignore nav
dimension by(c.id i,c.des d)
measures(c.t t, 0 A1, 0 A2, 0 A3)
rules(
A1[any,any] = t[cv(i),d = 'a1'],
A2[any,any] = t[cv(i),d = 'a2'],
A3[any,any] = t[cv(i),d = 'a3']
I A1 A2 A3
C 0 0 45
B 10 23 0
A 12 3 1 Any advice is appreciated, thank you.

Answer 1

Hi,
You can do dynamic SQL in SQL*Plus, also.
[Thid thread|http://forums.oracle.com/forums/thread.jspa?messageID=2744039&#2744039] shows how to pivot a table with a dynamic number of columns.