Query to place data in columns by date/time from rows

I have data as such

datetime                      ID      Value      
04.09.2007 14:00      23      1.2      
04.09.2007 14:00      27      4.8      
04.09.2007 14:00      30      9.2      
04.09.2007 15:00      23      1.3      
04.09.2007 15:00      27      4.9      
04.09.2007 15:00      30      9.1      
            
I would like to query out (display like this):                  

datetime                       23      27     30
04.09.2007 14:00      1.2      4.8      9.2
04.09.2007 15:00      1.3      4.9      9.1

What query can do this?
robjayAsked:
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
0
MohanKNairCommented:
select datetime,
max(decode(id, 23,value,null)) col23,
max(decode(id, 27,value,null)) col27,
max(decode(id, 30,value,null)) col30
from TableA GROUP BY datetime;
0

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robjayAuthor Commented:
Thanks Mohan - can't get that to work in an Oracle SQL session
0
Guy Hengel [angelIII / a3]Billing EngineerCommented:
what error do you get?
0
imarediaCommented:
The query given by Mohan works perfect for me. Here is what i did, let me know if it's still a problem.

CREATE TABLE t
(  id           number,
   datetime     date,
   VALUE        number(4,2)
)

INSERT INTO t(id, datetime, value) SELECT 23, to_date('04.09.2007 14:00', 'DD.MM.YYYY hh24:mi'), 1.2 FROM dual;

INSERT INTO t(id, datetime, value) SELECT 27, to_date('04.09.2007 14:00', 'DD.MM.YYYY hh24:mi'), 4.8 FROM dual;

INSERT INTO t(id, datetime, value) SELECT 30, to_date('04.09.2007 14:00', 'DD.MM.YYYY hh24:mi'), 9.2 FROM dual;

INSERT INTO t(id, datetime, value) SELECT 23, to_date('04.09.2007 15:00', 'DD.MM.YYYY hh24:mi'), 1.3 FROM dual;

INSERT INTO t(id, datetime, value) SELECT 27, to_date('04.09.2007 15:00', 'DD.MM.YYYY hh24:mi'), 4.9 FROM dual;

INSERT INTO t(id, datetime, value) SELECT 30, to_date('04.09.2007 15:00', 'DD.MM.YYYY hh24:mi'), 9.1 FROM dual;

COMMIT;

SELECT      datetime, MAX (DECODE (ID, 23, VALUE, NULL)) "23",
                   MAX (DECODE (ID, 27, VALUE, NULL)) "27",
                   MAX (DECODE (ID, 30, VALUE, NULL)) "30"
    FROM     t
GROUP BY datetime;
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