Zend FR

dans mon application.ini
mainDb.db.adapter ="SQLSRV"
mainDb.db.params.host = "xxxxxx"
mainDb.db.params.username = "xxxx"
mainDb.db.params.password = "xxxxx"
mainDb.db.params.dbname = "xxxxx"
mainDb.db.params.date_format = "YYYY-MM-ddTHH:mm:ss"
mainDb.db.params.charset ="UTF-8"
mainDb.db.profiler.enabled = false
mainDb.db.isDefaultTableAdapter = true
mainDb.db.ReturnDatesAsStrings = true

dans le boostrap
$db = Zend_Db::factory($this->get_conf()->mainDb->db);
ou
Zend_Db::factory($this->get_conf()->mainDb->db->adapter, $this->get_conf()->mainDb->db->params );

où $this->get_conf() est un Zend_Config