code/Debug/Helper/Data.php
public function runSql($query, $queryParams = array())
    {
        /** @var Magento_Db_Adapter_Pdo_Mysql $connection */
        $connection = Mage::getSingleton('core/resource')->getConnection('core_write');
        /** @var Varien_Db_Statement_Pdo_Mysql $statement */
        $statement = $connection->query($query, $queryParams);

        return $statement->fetchAll(PDO::FETCH_ASSOC);
    }
public function runSql($query, $queryParams = array())
    {
        /** @var Magento_Db_Adapter_Pdo_Mysql $connection */
        $connection = Mage::getSingleton('core/resource')->getConnection('core_write');
        /** @var Varien_Db_Statement_Pdo_Mysql $statement */
        $statement = $connection->query($query, $queryParams);

        return $statement->fetchAll(PDO::FETCH_ASSOC);
    }
Returns results as assoc array for specified SQL query

@param string $query
@param array  $queryParams
@return array
@throws Zend_Db_Statement_Exception