How to organize the interaction of three databases using 1C-Bitrix?

Question

1C-Bitrix

It is necessary to display data from three different databases on the page:

• mysql with which Bitrix works
  
• mysql
  
• PostgreSQL
  

What is the best way to organize interaction? Is it a cron task to request data from two databases and save them in mysql with which Bitrix works? Other options?

Answer 1

Connect all three Work with multiple databases and write your own classes / functions / just code for interaction