PDO向我的班级抛出错误？

I can enable PDO to throw error as exceptions to PDOException class. Can I make it to throw it to my exception class? Right now I have to code like this:

try {
    $sql = "query";
    $zap = $pdo->query($sql);
    $sql_d=array();
    if ($zap->execute($sql_d)) {

    }
} catch (\PDOException $e) {
    throw new dbException($zap->errorInfo(), $sql);
}

I want to PDO throw error to dbException class - not PDOException.