In terms of getting your certification, only the fact that you passed matters. Oracle does not care about the score and does not allow you to retake the test to get a better one.
In terms of starting a career in Oracle, a lower score may mean that you do not have as firm a grasp of SQL Fundamentals as you should. From this standpoint, reviewing the topics that your score report shows that you missed one or more questions in would be a good idea. My site has numerous links to articles and videos with material designed for exam preparation. They work equally well for the purpose of reviewing areas you are weak on after the exam. In particular, I recently added links to a number of videos that you might find useful: