แบบฝึกหัด

Filtering the groups

The Metropolitan Public Library's new rating statistics feature is a hit! However, patrons have complained that books with only one or two reviews can have misleading averages. A book with a single 5-star review appears just as highly rated as a beloved classic with hundreds of positive reviews.

The library director has asked you to enhance the system by allowing users to filter out books with insufficient reviews.

คำแนะนำ

100 XP

Complete the query to filter books with a specified number of reviews.
Securely set the parameter only to display books with at least three reviews.

.css-6su6fj{-webkit-flex-shrink:0;-ms-flex-negative:0;flex-shrink:0;}แบบฝึกหัด

คำแนะนำ

แบบฝึกหัด