Re: Strange behavior

Mike,

Thanks for the tip, but I have already prefixed the owner for both tables so that shouldn't be a problem. That did give me an idea for som additional testing. When I made a smaller copy of the PEAR table, all queries work correctly. This tells me there might be something "unique" about the original table.

I'll be doing more testing. Stay tuned and I'll post updates as I make new discoveries.

Thanks
Stephen

>>> michael.boligan.b_at_bayer.com 01/07/04 01:29PM >>>

A good first place to check is that there are no other objects (synonym is a frequent culprit).

try:

select object_name,object_type
from dba_objects
where object_name = 'APPLE';

This will tell you if there is anything else out there with the same name.

HTH,
Mike

                                                                       
                                                                
                      "Stephen Andert"                                 
                                                                
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                      Sent by:                    Subject:  Strange
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                      01/07/2004 02:49 PM                              
                                                                
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Greetings fellow-DBA-folk:

When I run several queries, I am getting very strange results. Selecting * from apple returns the expected data records, but count(*) does not.
Selecting anything other than * from apple says no records. The subquery for pear works fine on it's own. Selecting anything other than * from apple returns the expected records
when about 900+ values are placed literally in the subquery as shown in
example 4 below.

Am I missing something? Anyone have a direction for me to look for the
cause of this?

Thanks
Stephen

EX 1
select rowid from common.apple
where appleinter1 in (select pearinternal from common.pear where pear_clnt_src_cd = 'CCN')
and appletermd is null
and rownum < 10 ;

no rows selected

EX 2
select rownum from common.apple
where appleinter1 in (select pearinternal from common.pear where pear_clnt_src_cd = 'CCN')
and appletermd is null
and rownum < 10 ;

no rows selected

EX 3
select * from common.apple
where appleinter1 in (select pearinternal from common.pear where pear_clnt_src_cd = 'CCN')
and appletermd is null
and rownum < 10 ;

• 9 rows returned, I removed them for confidentiality reasons ---

EX 4
select count(*) from common.apple
where appleinter1 in ( 7009 , 7010 , 7011 , 7012 , 7013 , 7014 , 7015 ,
7016 , 7017 , 7018 , 7019)
and appletermd is null
and rownum < 10 ;

• 9 rows returned, I removed them for confidentiality reasons ---

EX 5
select count(*) from common.apple
where appleinter1 in (select pearinternal from common.pear where pear_clnt_src_cd = 'CCN')
and appletermd is null;

    COUNT(*)

           0

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