SQL> select  sys_context('userenv','session_user'),
  2  dump(sys_context('userenv','session_user')), a.reports_login,
  3  dump(a.reports_login)
  4  from global.client_dim a
  5  WHERE sys_context('userenv','session_user') = trim(a.REPORTS_LOGIN);

SYS_CONTEXT('USERENV','SESSION_USER')
----------------------------------------------------------------------------
------------------------
DUMP(SYS_CONTEXT('USERENV','SESSION_USER'))
----------------------------------------------------------------------------
------------------------
REPORTS_LOGIN
------------------------------
DUMP(A.REPORTS_LOGIN)
----------------------------------------------------------------------------
------------------------
REPORTS_DELTA
Typ=1 Len=13: 82,69,80,79,82,84,83,95,68,69,76,84,65
REPORTS_DELTA
Typ=1 Len=13: 82,69,80,79,82,84,83,95,68,69,76,84,65


And

  1  SELECT count(*)
  2           FROM global.client_dim a
  3*         WHERE sys_context('userenv','session_user') =
trim(a.REPORTS_LOGIN)
SQL> /

  COUNT(*)
----------
         0


I'm going to open a tar on this.
I will email the resolution.  ...and check for any more suggestions! :)

Chris

-----Original Message-----
Sent: Tuesday, November 11, 2003 2:24 PM
To: Multiple recipients of list ORACLE-L

Chris

There is a contradiction below:

Chris Stephens wrote:

> SQL> select  sys_context('userenv','session_user'),
>   2  dump(sys_context('userenv','session_user')), a.reports_login,
>   3  dump(a.reports_login)
>   4  from global.client_dim a
>   5  WHERE sys_context('userenv','session_user') = a.REPORTS_LOGIN;

Produces some output.

Your original query does not return anything.

   1  SELECT count(*)
   2      FROM global.client_dim a
   3*     WHERE sys_context('userenv','session_user') =
trim(a.REPORTS_LOGIN)

The obvious differences here are:

. TRIM function
. probably when you've tried to launch the original query you had pofile
functions enabled, when you tried it second time it was disabled.
. query rewrite is used (could be, right?)

Could you please check the second and third items?
-- 
Vladimir Begun
The statements and opinions expressed here are my own and
do not necessarily represent those of Oracle Corporation.
        
> 
> SYS_CONTEXT('USERENV','SESSION_USER')
>
----------------------------------------------------------------------------
> ----
> DUMP(SYS_CONTEXT('USERENV','SESSION_USER'))
>
----------------------------------------------------------------------------
> ----
> REPORTS_LOGIN
> ------------------------------
> DUMP(A.REPORTS_LOGIN)
>
----------------------------------------------------------------------------
> ----
> REPORTS_DELTA
> Typ=1 Len=13: 82,69,80,79,82,84,83,95,68,69,76,84,65
> REPORTS_DELTA
> Typ=1 Len=13: 82,69,80,79,82,84,83,95,68,69,76,84,65
> 
> 
> 
> -----Original Message-----
> Sent: Tuesday, November 11, 2003 11:44 AM
> To: Multiple recipients of list ORACLE-L
> 
> I may be barking up the wrong tree, but humour an old dba...
> 
> Could you try running the following and post the output?
> 
> select  sys_context('userenv','session_user'),
> dump(sys_context('userenv','session_user')), a.reports_login,
> dump(a.reports_login)
> from global.client_dim a
> WHERE sys_context('userenv','session_user') = a.REPORTS_LOGIN;
> 
> Daniel
> 
> 
> Chris Stephens wrote:
> 
> 
>>I just tried:
>>
>>  1  SELECT count(*)
>>  2      FROM global.client_dim a
>>  3*     WHERE sys_context('userenv','session_user') = a.REPORTS_LOGIN
>>SQL> /
>>
>>  COUNT(*)
>>----------
>>         1
>>
>>...but we had a problem 2 weeks ago where the comparison only worked when
> 
> I
> 
>>put in the trim.
>>
>>?????????
>>
>> 1  SELECT count(*)
>> 2      FROM global.client_dim a
>> 3*     WHERE TRIM(sys_context('userenv','session_user'))
>>=TRIM(a.REPORTS_LOGIN)
>>SQL> /
>>
>>  COUNT(*)
>>----------
>>         0


-- 
Please see the official ORACLE-L FAQ: http://www.orafaq.net
-- 
Author: Vladimir Begun
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-- 
Author: Chris Stephens
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