I met ORA-00935 group function is nested too deeply Message.

Hi all,
I made a table like below,
==============================
CREATE TABLE ser_1m_det (
     time                    TIMESTAMP,
     proto                    NUMBER(3,0),
     port                    NUMBER(5,0),
     pkts                    NUMBER(17,0),
     vol_m                    NUMBER(17,4)
====================================
Then I want to use below SQL
====================================
SELECT proto, port, SUM(pkts) pkts, SUM(vol_m) vol_m
FROM ser_1m_det
GROUP BY (proto, port)
HAVING time < SYSTIMESTAMP AND ROWNUM<10
ORDER BY SUM(pkts);
====================================
When I execute upper sql, I met this error message;
===================================
ORDER BY SUM(pkts)
ORA-00935 group function is nested too deeply
===================================
Then I search what this message mean.
====================================
ORA-00935 group function is nested too deeply
Cause: This is an internal error message not usually issued.
Action: Contact Oracle Support Services.
====================================
I install Oracle9iAS Infrastructure 9.0.2.0.0 on WIN2000.
(I am using DBMS in Oracle9iAS @.@)
-> DBMS version is Oracle9i Enterprise Edition Release 9.0.1.3.1
Anybody know why I met upper error message?
Thanks in advance.

well,
first you want to group,
then you want to order,
and most probably then you are interested in the N top records.
I had a try on table USER_OBJECTS to make things easier:
select * from
(select
object_type
,status
,nvl(oi ,0) oi
,nvl(doi,0) doi
from
( select
object_type
,status
,sum(object_id) oi
,sum(data_object_id) doi
from
user_objects
where
created between sysdate -1000 and sysdate
group by
object_type
,status
) A
order by
oi desc
) B
where rownum < 5
;

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ORA-00935: group function is nested too deeply - SQL Query is correct...

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ERROR
1 error has occurred
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Error in nested group function used with column name.

Hi Team,
If i used nested group function with column name its not working. Could you please any one suggest me.
How to use it.
Regards,
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Please find Spool ........
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Venkat wrote:
Hi Sayan
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Hi,
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I've retrieved the oracle exception ORA-00978 even if there was no group function in my query.
I supposed was a problem in the optimizer so I rebuild the tables statistics, after that the query was execute successfully.
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Is possible that a bug exists in the 11g optimizer?
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Oracle Database 11g Enterprise Edition 11.1.0.6.0 64bit Production
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Renzo

user479513 wrote:
VWCALENDARACTIVITY and VWSE are two views, but I can select from them without any problem.
I've also tried to remove one view at a time an the error occurs only when the query uses both view at the same time.
What are the views definition ?
Nicolas.

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   Insert into TEST_TABLE (KEY,NAME,DESCRIPTION) values (3,'peter',null);
   Insert into TEST_TABLE (KEY,NAME,DESCRIPTION) values (4,'andrew',null);
select
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           , xmlforest(Key as "ID")
           , xmlforest(name as "ename")
           , xmlelement("Descriptions",
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You can do it with a correlated subquery :
SQL> select xmlserialize(document
2           xmlelement("root",
3             xmlagg(
4               xmlelement("emp"
5               , xmlforest(
6                   t.key as "ID"
7                 , t.name as "ename"
8                 , (
9                     select xmlagg(
10                              xmlelement("Desc", d.description)
11                              order by d.description -- if necessary
12                            )
13                     from test_desc d
14                     where d.key = t.key
15                   ) as "Descriptions"
16                 )
17               )
18             )
19           ) as clob indent
20         )
21 from test_table t;
XMLSERIALIZE(DOCUMENTXMLELEMEN
<root>
<emp>
    <ID>1</ID>
    <ename>sam</ename>
    <Descriptions>
      <Desc>desc1_1</Desc>
      <Desc>desc1_2</Desc>
      <Desc>desc1_3</Desc>
    </Descriptions>
</emp>
<emp>
    <ID>2</ID>
    <ename>max</ename>
    <Descriptions>
      <Desc>desc2_1</Desc>
      <Desc>desc2_2</Desc>
      <Desc>desc2_3</Desc>
    </Descriptions>
</emp>
<emp>
    <ID>3</ID>
    <ename>peter</ename>
</emp>
<emp>
    <ID>4</ID>
    <ename>andrew</ename>
</emp>
</root>
Or an OUTER JOIN + GROUP-BY :
select xmlserialize(document
         xmlelement("root",
           xmlagg(
             xmlelement("emp"
             , xmlforest(
                 t.key as "ID"
               , t.name as "ename"
               , xmlagg(
                   xmlforest(d.description as "Desc")
                   order by d.description -- if necessary
                 ) as "Descriptions"
         ) as clob indent
from test_table t
     left outer join test_desc d on d.key = t.key
group by t.key
       , t.name
;Edited by: odie_63 on 11 juil. 2012 14:54 - added 2nd option

I met ORA-00935 group function is nested too deeply Message.

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