RE: TDE issues
- From: "William Wagman" <wjwagman@xxxxxxxxxxx>
- To: "Ghassan Salem" <salem.ghassan@xxxxxxxxx>
- Date: Wed, 23 May 2007 16:04:29 -0700
Ghassen, yes, I had a typo, here is the corrected problem...
testx=SQL>select * from t1;
C1
--
1
2
2 rows selected.
testx=SQL>select * from t1 where exists
2 (select 'x' from oracle.t2@devx a
3 where a.c1 = t1.c1);
C1
--
1
1 row selected.
testx=SQL>select * from t1 where not exists
2 (select 'x' from oracle.t2@devx a
3 where a.c1 = t1.c1);
C1
--
2
1 row selected.
testx=SQL>exit
In devx...
devx=SQL>select * from t2;
C1
--
1
3
2 rows selected.
devx=SQL>select * from t2 where exists
2 (select 'x' from oracle.t1@testx a
3 where a.c1 = t2.c1);
C1
--
1
1 row selected.
devx=SQL>select * from t2 where not exists
2 (select 'x' from oracle.t1@testx a
3 where a.c1 = t2.c1);
C1
--
1
3
2 rows selected.
devx=SQL>exit
Bill Wagman
Univ. of California at Davis
IET Campus Data Center
wjwagman@xxxxxxxxxxx
(530) 754-6208
________________________________
From: Ghassan Salem [mailto:salem.ghassan@xxxxxxxxx]
Sent: Wednesday, May 23, 2007 1:31 AM
To: William Wagman
Cc: oracle-l
Subject: Re: TDE issues
Bill,
are you sure of your test case?
the second query on testx
select * from t1 where not exists (select 'x' from oracle.t2@devx a
where a.c1 = t1.c1);
cannot return the result that you mention
1
as there is no such data in t1 in testx (otherwise, this is a 'wrong
result' case).
rgds
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