RE: TDE issues

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_at_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_at_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_at_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_at_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_at_ucdavis.edu
(530) 754-6208  

From: Ghassan Salem [mailto:salem.ghassan_at_gmail.com] 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_at_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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