BUG? BRIDGE statement to compare two tables

Question

Hello,
I tried to compare two tables in different dbs and remembered a post about Cross Connectin Queries
http://barrymcgillin.blogspot.com/2010/11/cross-connection-queries.html
BRIDGE temparb AS "EB05 01"
(SELECT * FROM arb)
(SELECT * FROM temparb
MINUS
SELECT * FROM arb
UNION ALL
(SELECT * FROM arb
MINUS
SELECT * FROM temparb
);I would expect to get the differences between the table arb in my current schema and the table arb alias temparb in the other db. Yet it seems, that in this case only the table in my current schema is read.
I materialize the BRIDGE table with
BRIDGE temparb AS "EB05 01"
(SELECT * FROM arb)and select the value I know to be only in the remote schema
SELECT id FROM temparb WHERE id = 2562;
SELECT id FROM arb WHERE id = 2562;Both times I get no result. I even tried to use aliases on the table, same result. Tested in 3.0 and 3.1 EA3.
Has anyone tried this before?
Regards
Marcus

Answer 1

Hi Marcus,
Have you tried it without the double quotes around the connection name?
I have a connection called
system_local
which I run the following command in
drop table testbridge_remote;
drop table testdbrige;
create table testbridge(col1 int);
insert into testbridge values (1);
insert into testbridge values (2);
insert into testbridge values (3);
commit;
I have a connection called
Connection Name With Space
which I run the following in
drop table testdbrige;
create table testbridge(col1 int);
insert into testbridge values (4);
insert into testbridge values (5);
insert into testbridge values (3);
commit;
Then in the system_local connection/worksheet I can run the following statement
BRIDGE testbridge_remote as Connection Name With Space(select * from testbridge)
+(SELECT * FROM testbridge_remote+
MINUS
SELECT * FROM testbridge
+)+
UNION ALL
+(SELECT * FROM testbridge+
MINUS
SELECT * FROM testbridge_remote
+);+
It works ok.
Returning rows in the remote table not in the local table , and rows in the local table not in the remote table .
Regards,
Dermot
SQL Developer Team.