Mark,
Good idea, but no, the sub-select only returns numbers.
Thanks
Stephen
>>> [EMAIL PROTECTED] 01/07/04 01:09PM >>>
Stephen,
Do any of your sub-selects (the queries inside the IN() clause) return
NULL? If so, that will definitely cause zero rows to be returned by
the
outer query.
-Mark
Mark J. Bobak
Oracle DBA
ProQuest Company
Ann Arbor, MI
"Imagination was given to man to compensate him for what he is not,
and
a sense of humor was provided to console him for what he is."
--Unknown
-----Original Message-----
Sent: Wednesday, January 07, 2004 2:49 PM
To: Multiple recipients of list ORACLE-L
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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