How to connect to existing Database like CRM, SQL server?

Hi,   We need to use mendix apps to connect to existing database which developed with CRM and SQL server. Can we use existing CRM/SQL  DB in Mendix apps? If yes how can we import existing entities and table structure in to the current app.
1 answers

Yes, you can use the Database Connector in the Mendix Appstore:

This connector enables you to run SQL queries on external databases. It will not create entities for you, this is something need to do yourself using a domain model.