Calling two databases

I want to fetch data from two different databases in the same bot. How can I do this? Do I have to create multiple custom actions for that? if yes, what is the procedure? Or can I create a different class and use method overriding. Is there any other solution to this?

You can create both regular Python methods and Action classes in your file. That being said, you can probably go for an approach like this:

# RASA Action Method
class SomeAction(Action):
    def name(self) -> Text:
        return "action_A"

    def run(self, dispatcher: CollectingDispatcher, tracker: Tracker, domain: Dict[Text, Any]) -> List[Dict[Text, Any]]:
        if someCondition:
            value = get_from_database(db1)
            value = get_from_database(db2)
        . # do something with value

# Regular Python method
def get_from_database(database):
    if database == 'db1':
            # Fetch from database 1, extract and return the result

    elif database == 'db2':
            # Fetch from database 2, extract and return the result