| 价格 | Free |
|---|---|
| 证书 | 认证证书 |
| 时长 | 45 min |
| 课程单元 | 17 |
| 语言 | English |
| 级别 | Beginner |
| 考试 | Self-paced, lifetime access |
5 modules · 17 lessons
完成本课程后，您将解锁认证证书 — 可下载为 PDF，附带唯一编号和验证链接。
Each certificate has a unique verifiable link and QR code.
Yes. You can start learning this course for free.
This course is designed for learners who want practical, job-relevant skills and a structured path from basics to application.
No prior experience is required unless specific prerequisites are listed in the course requirements section.
The estimated total study time for this course is 45 min.
完成本课程后，您可以下载带有唯一编号和公共验证链接的认证证书。
I finally got table joins.
The real query examples were the best part, especially filtering and combining tables.
The little case studies made GROUP BY feel useful instead of abstract.
Solid on the basics, especially shaping data for analysis. I just would've liked a few more practice questions after each module.
Good pace, though a couple sections on database building could've been a bit shorter.
