Question

I have 2 database in ORACLE SQL DEVELOPER connections, con1 and con2 (with different schemas)

I need to create a view, based on columns from both db’s , the method:

Create VIEW testviewAS (SELECT col1, col2, col3 FROM con1.table1);
ALTER VIEW AS (SELECT col1, col2, col3 FROM con2.table2);

It doesn’t work.

Answer 1

Found this solution

in the second connection worksheet I access grants on table2 to conection1 one

GRANT SELECT on table2 to Connection1

and then I create view (on the 1sr connection worksheet):

Create VIEW testview AS (SELECT col1, col2, col3 FROM con1.table1);
ALTER VIEW AS (SELECT col1, col2, col3 FROM con2.table2);