Finding common set in 2 VOs

Hi,
I need to find the common set between 2 ViewObjects based on the same entity. How can this be achieved...any ideas.
TIA

Thanks for the reply. I got the common set by extracting the keys from one and finding the row from another.
As for the functionality part I was trying to implement a find on a resultset. I achieved that in a way that I am able to find and see results using next and previous. In the results I have observed that if the row is not in range the call to getCurrentRowIndex() after setting the row to current, returns the next start range i.e.. if range end is 9 I get a 10. But this creates a problem as if I have some sorting because that is lost once it happens.
Also I noticed that it works fine if I iterate forward (next), even a page jump is fine, but if I use a previous which should take me to a different page ..it surprisingly shows the last row as the result where as the result row is somewhere in the middle. This doesn't happen if the previous result is on the same page. I am unable to find the cause for this behaviour.
I would appreciate any help in solving these problems.
TIA

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Finding common attributes in a table

Finding common attributes in a table
Hello,
I am sometimes faced with the following problems and I don’t know if it can be solved with SQL or how it could be solved with PL/SQL. I appreciate your help on this.
I have a customer table with a cust_id key and 10 their customer attributes in the table.
1.     Given a set of cust_id keys, what are the common attributes of that set. That is, of the other 10 attributes, which ones are the same for each cust_id in the set?
2.     Given a set of attributes, what is the set of cust_id keys for which they are all the same?
Thanks for your help and suggestions.
Gary

Something like:
select case
          when min(attr1) = max(attr1) then 'All attr1 values are ' || max(attr1)
          else 'Attr1 values range form ' || min(attr1) || ' to ' || max(attr1)
        end attr1,
        case
          when min(attr2) = max(attr2) then 'All attr2 values are ' || max(attr2)
          else 'Attr2 values range form ' || min(attr1) || ' to ' || max(attr2)
        end attr2,
        case
          when min(attr10) = max(attr1) then 'All attr10 values are ' || max(attr10)
          else 'Attr10 values range form ' || min(attr10) || ' to ' || max(attr10)
        end attr10
from customer
where cust_id in (cust_id_set)
select cust_id
from customer
where attr1 = attr1_val
/SY.
P.S. You need to tell how you wnat to treat NULL values.

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Need to find common number among the set of calls :
Create table call (id number(15) primary key not null , mobile_number number(10), other_party number(10), call_type varchar2(10),call_date_time date, duration number(15));
insert into call values(1,9818764535,9899875643,'IN',to_date('24-APR-13 02:10:43','dd-MON-yy hh24:mi:ss'),10);
insert into call values(2, 9897451236,9899875643,'OUT',to_date('28-APR-13 08:11:13','dd-MON-yy hh24:mi:ss'),20);
insert into call values(3, 9899917277,9899875643,'IN',to_date('30-APR-13 18:07:02','dd-MON-yy hh24:mi:ss'),30);
insert into call values(4,9818764535,9215478213,'IN',to_date('01-MAY-13 02:11:13','dd-MON-yy hh24:mi:ss'),40);
insert into call values(5, 9899917277,9215478213,'IN',to_date('01-MAY-13 08:17:02','dd-MON-yy hh24:mi:ss'),25);
insert into call values(6, 9897451236,9012451785,'OUT',to_date('01-MAY-13 20:21:04','dd-MON-yy hh24:mi:ss'),67);
Query criteria :
common caller for list of numbers who is in contact with listed numbers .
Input Mobile_number:
9818764535
9897451236
9899917277
output common number
Mobile number otherparty date_time duration
9818764535 9899875643 24-APR-13 02:10:43 10
9897451236 9899875643 28-APR-13 08:11:13 20
9899917277 9899875643 30-APR-13 18:07:02 30

Thanks , it helped
But if internal calls among these mobile numbers are to be find then
insert into call values(1,9818764535,9899875643,'IN',to_date('24-APR-13 02:10:43','dd-MON-yy hh24:mi:ss'),10);
insert into call values(2, 9897451236,9899875643,'OUT',to_date('28-APR-13 08:11:13','dd-MON-yy hh24:mi:ss'),20);
insert into call values(3, 9899917277,9899875643,'IN',to_date('30-APR-13 18:07:02','dd-MON-yy hh24:mi:ss'),30);
insert into call values(4,9818764535,9215478213,'IN',to_date('01-MAY-13 02:11:13','dd-MON-yy hh24:mi:ss'),40);
insert into call values(5, 9899917277,9215478213,'IN',to_date('01-MAY-13 08:17:02','dd-MON-yy hh24:mi:ss'),25);
insert into call values(6, 9897451236,9012451785,'OUT',to_date('01-MAY-13 20:21:04','dd-MON-yy hh24:mi:ss'),67);
insert into call values(7,9818764535,9897451236,'IN',to_date('02-MAY-13 22:10:43','dd-MON-yy hh24:mi:ss'),100);
insert into call values(8, 9899917277,9818764535,'IN',to_date('02-MAY-13 23:07:02','dd-MON-yy hh24:mi:ss'),130);
Input Mobile_number:
9818764535
9897451236
9899917277
output internal calls :
Mobile number otherparty call_type date_time duration
9818764535 9897451236 IN 02-MAY-13 22:10:43 100
9899917277 9818764535 IN 02-MAY-13 23:07:02 130

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Finding common set in 2 VOs

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