I have an idea of integrating two databases, at one point I have the PostGresSql with system A and on the other side a Firebird in system B.
For example: I wrote a client on system A and I need to export to system B.
In addition to creating a trigger and playing to an intermediary bank and then making an application to communicate and insert into system B.
What would be the other way to do this? or the best way?