nopes, that’s pretty much not all you need. also varest is not the ideal tool.
you’re better off with one of these:
https://www.unrealengine.com/marketplace/en-US/product/database-connector-odbc
https://www.unrealengine.com/marketplace/en-US/product/mysql-integration
(adding this here because i was also looking for it, and this is the first result)