In this tutorial we tell you how to retrive the content from database with the use of table name . here is the core help to fetch the content using select query . 

$connection = Mage::getSingleton('core/resource')->getConnection('YOUR_DATABASE_NAME');

//I assuming that you created the model for your table

$result = $connection->fetchAll("SELECT *FROM YOUR_TABLE");

///just checking the result



Hope this is helps you .