OBIEE: Incorrect SQL - with count function uses ORDER BY instead GROUP BY

I made a basic report that is a client count; I want to know how many clients the company have.
But, when I run this report, OBIEE generates a ORDER BY sentence, instead a GROUP BY. Remember that I'm using count function, that is a agregation.
The SQL generated was:
select 'N0' as c1,
count(*) as c2
from
(select distinct T1416.CLIENT_INTER_KEY as c1
from
(select *
from prd.D_SERVICE where SOURCE_SYS in ('ARBOR','PPB') and DW_SERV_ST_ID in (100000003,100000009)) T1836,
(select *
from prd.D_CLIENT) T1416,
(select *
from prd.D_CUSTOMER_ACCOUNT where SOURCE_SYS In ('ARBOR','PPB')) T1515
where ( T1416.DW_CLIENT_ID = T1515.DW_CLIENT_ID and T1515.DW_CUST_ACCT_ID = T1836.DW_CUST_ACCT_ID and T1836.MSISDN = '917330340' )
) D1
order by c1
The error that I receive is:
"Query Status: Query Failed: [nQSError: 16001] ODBC error state: S1000 code: -1005018 message: [Sybase][ODBC Driver][Adaptive Server Anywhere]Illegal ORDER BY item Order Item: 'N0',
-- (opt_OrderBy.cxx 429) .
[nQSError: 16011] ODBC error occurred while executing SQLExtendedFetch to retrieve the results of a SQL statement."
If I substitute ORDER BY with GROUP BY and test it in Sybase, Ithe query runs without any problem.
select 'N0' as c1,
count(*) as c2
from
(select distinct T1416.CLIENT_INTER_KEY as c1
from
(select *
from prd.D_SERVICE where SOURCE_SYS in ('ARBOR','PPB') and DW_SERV_ST_ID in (100000003,100000009)) T1836,
(select *
from prd.D_CLIENT) T1416,
(select *
from prd.D_CUSTOMER_ACCOUNT where SOURCE_SYS In ('ARBOR','PPB')) T1515
where ( T1416.DW_CLIENT_ID = T1515.DW_CLIENT_ID and T1515.DW_CUST_ACCT_ID = T1836.DW_CUST_ACCT_ID and T1836.MSISDN = '917330340' )
) D1
group by c1
Do you know why OBIEE generates this SQL??? Why uses, with a aggregation function, a ORDER BY and not a GROUP BY? How can I resolve this problem???
Regards,
Susana Figueiredo

Verify your repository design and make sure that you have defined count aggregate on fact column. You would also need to define the content level of each dimension in fact table.

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OBIEE: Incorrect SQL - with count function uses ORDER BY instead GROUP BY

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