/*
db6 = project_orange
db7 = project_banana
*/
$this->db6 = $CI_database2->load->database('project_orange', TRUE);
$this->db7 = $CI_database2->load->database('project_banana', TRUE);
$LoadDatabase = "project_banana";
$this->db6->query('UPDATE '.$LoadDatabase.'.'.$LoadTable.' SET `foo` = "bar";');