display aditional sql data

Hi,
i'm using tbb + plugin by page to display the result of a sql query.
Is it possible - for each record - to display aditional sql data coming from another table?

For example, if i merge a query to display a list of bills, can i display, for each bill, the name of the the customer coming from another table?
The id of the customer is in the bill table, but it's not a foreign key.

Thanks in advance for your answers.