An ODBC connection is made to the MySQL database and the current account data for the given account holder is fetched from the database and stored in an associative array.
It then massages the returned data into a PHP array and passes it to the Zend_Paginator arraydata source, which takes care of extracting the array subset required for the current page.
Notice that this second SQL query contains a question mark (?) placeholder - at run-time, this placeholder is replaced by the current value of the fields specified in the dataarray.