PostgreSQL入門！新入社員研修向け！現場で最低限必要なSQLの基本文法をサクッと学ぶ！SQLを初めて習う方必見！

Thank you for your detailed explanation! It seems that you've provided a comprehensive overview of what students can expect from the PostgreSQL course on Udemy, including the prerequisites, the structure of the course, special benefits for those who purchase the course, and tips for skill upgrading.

To summarize:

• Students are expected to have some basic understanding of SQL, databases, and ideally some experience with a relational database system like MySQL or Oracle before starting the PostgreSQL course.
• The course is designed for beginners to intermediate users, focusing on practical knowledge and real-world application of PostgreSQL.
• The course is self-paced, allowing students to learn at their own rhythm, and it's also possible to learn outside of the course by using provided textbooks and additional resources from the internet.
• Students are encouraged to practice actively by trying out the concepts on their own, explaining what they've learned to others, and reinforcing their knowledge through repetition and hands-on experience.
• For any questions or unclear points that arise during the course, students can use Udemy's Q&A system or send a message directly to the instructor for support.
• Students are also encouraged to introduce the course to others through social media or word of mouth if they find it helpful. Regarding refunds, if the course doesn't meet expectations and there are unresolvable issues, students are advised to initiate a refund discussion promptly.

Your message is clear and provides valuable advice for anyone considering enrolling in the PostgreSQL course on Udemy. It's great to see such a supportive approach to learning, emphasizing active engagement, practical application, and community support. If you have any more questions or need further assistance, feel free to ask!