Multiple group example is not working

Question

i run the multiple groups example in cocomo
I subjected to one problem
me as owner, my friend as guest entered into room
i created one group group1. myself added into that group.
my friend was in default.
if i am trying to send mess. no connection . That was good
After that i added my friend into group1.
now there is connection between us. message was sent.
now i remove my friend from my group1.
if i am trying to send the message to my friend, still the message was sent to my friend.
friends i am trying lot to make the disconnection after removing my friend from group1.
i am not able to do.
just exactly i run multiple groups without any change.

Answer 1

Hi,
But inv_no is diferent for each row, isn't? So, what value do you want to show?
Example:
Connected to Oracle Database 10g Express Edition Release 10.2.0.1.0
Connected as hr
SQL>
SQL> with pradeep as(
  2  select 1 as re, 2 as zo, 1 as call_no, 1 as inv_no from dual union all
  3  select 1 as re, 2 as zo, 1 as call_no, 2 as inv_no from dual union all
  4  select 1 as re, 2 as zo, 1 as call_no, 3 as inv_no from dual union all
  5  select 1 as re, 2 as zo, 1 as call_no, 4 as inv_no from dual union all
  6  select 1 as re, 3 as zo, 1 as call_no, 5 as inv_no from dual union all
  7  select 1 as re, 3 as zo, 1 as call_no, 6 as inv_no from dual
  8  )
  9  SELECT re,
10         zo,
11         call_no,
12         COUNT(*) AS cnt
13    FROM pradeep
14   GROUP BY re,
15            zo,
16            call_no
17  HAVING COUNT(*) > 1;
        RE         ZO    CALL_NO        CNT
         1          2          1          4
         1          3          1          2
SQL> Regards,