Hi Guys :
Scenario :

Database A is on one server (tables A, B, C)
Database B is on another server ( tables X Y Z)

I would like to establish a link between these databases.

When a new row is inserted in table A of Database A I want to insert
some columns of tables A to table X on database B .
When a row is updated in table Y of database B i would like to update
table B on database A.

I was wondering
a) Whats the best feasible approach to solve this scenario
b) If i create DB Links and create views can I write triggers on
Views ?
c) What are the pros and cons of different approaches.

All your help would be greatly appreciated.

Thank you