DSS comes with drivers for SQLite, but you still need to create the connection:
You can then create new datasets using this connection.
But, be aware that SQLite is not fully supported in DSS. It will be mainly okay for reading the tables. For writing, you can get some problems, especially if you are working with dates.
You can find more information in the User Guide about supported connection: http://doc.dataiku.com/dss/latest/connecting/connections.html