src/Application.php
public function removeDBConnection($dbName = "Default")
    {
        if (isset($this->_dbConnection[$dbName])) {
            $this->_dbConnection[$dbName]->closeConnection();
            unset($this->_dbConnection[$dbName]);
        }
        return $this->getDBConnection($dbName);
    }
public function removeDBConnection($dbName = "Default")
    {
        if (isset($this->_dbConnection[$dbName])) {
            $this->_dbConnection[$dbName]->closeConnection();
            unset($this->_dbConnection[$dbName]);
        }
        return $this->getDBConnection($dbName);
    }
Remove database connection by name
@param string $dbName
@return \Zend_Db_Adapter_Abstract