Greetings, If you would like to integrate Assistant with a database you simply need to use a Webhook (https://medium.com/ibm-watson/its-now-way-easier-to-personalize-your-assistant-9a23a9cadd4) if you are using the dialog or extensions (https://medium.com/ibm-watson/connect-to-backend-systems-and-third-party-apis-with-ease-thanks-to-watson-assistant-extensions-6d6150eaeba) if you are using the actions. The key with a database is that you need something in the middle like IBM Code Engine to turn the DB query in to a RESTful interface. This can be done by following this pattern (https://www.ibm.com/cloud/blog/updated-tutorial-database-driven-chatbot).
Best of luck! Database driven chatbots are powerful and easy to do with IBM Watson Assistant.
------------------------------
BRANDON SWINK
------------------------------