Distinct and max more than 2 column

Hi All,
Need help here. I have one table and need to display latest revision. But the problem is, i cannot use DISTINCT for column TITLE and MAX also failed when column is more than 2. I'm really stuck
I try below SQL statement but failed:
SELECT title, MAX(revision), coordinator
FROM specification
GROUP BY title, coordinator
But if my table have only 2 column, it's working:
SELECT title, MAX(revision)
FROM specification
GROUP BY title
Table Name: SPECIFICATION
TITLE          REVISION          COORDINATOR
SPEC-01          A                          John
SPEC-01          B                          Michelle
SPEC-01          C                          Andrew
SPEC-01          D                          John
SPEC-02          A                          Jenny
SPEC-02          B                          Robert
The result should be like below:
TITLE          REVISION          COORDINATOR
SPEC-01          D                          John
SPEC-02          B                          Robert
Edited by: 872733 on Jul 18, 2011 1:14 AM

SQL> select * from v$version;
BANNER
Oracle Database 11g Enterprise Edition Release 11.1.0.7.0 - 64bit Production
PL/SQL Release 11.1.0.7.0 - Production
CORE    11.1.0.7.0      Production
TNS for Linux: Version 11.1.0.7.0 - Production
NLSRTL Version 11.1.0.7.0 - Production
SQL> with t
2 as
3 (
4   select 'SPEC-01' title, 'A' revision, 'John' coordinator from dual union all
5   select 'SPEC-01', 'B', 'Michelle' from dual union all
6   select 'SPEC-01', 'C', 'Andrew' from dual union all
7   select 'SPEC-01', 'D', 'John' from dual union all
8   select 'SPEC-02', 'A', 'Jenny' from dual union all
9   select 'SPEC-02', 'B', 'Robert' from dual
10 )
11 select title, max(revision) revision, max(coordinator) keep(dense_rank first order by revision
desc) coordinator
12 from t
13 group by title
14
SQL> /
TITLE   R COORDINA
SPEC-01 D John
SPEC-02 B RobertCheck this link for more information.
http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/functions058.htm#SQLRF00641
http://download.oracle.com/docs/cd/B28359_01/server.111/b28286/functions001.htm#i81407
Regards
Raj

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1 42C63512 8050166F 04-19-2012 16:02:50 mm-dd-yyyy hh24:mi:ss MCC52420 04/19/2012 16:02:57 mm-dd-yyyy hh24:mi:ss 10 4 0.778471 8 1 0.00 -122.30 13.05 8 1 7
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