Recall
Set 1: Quick Check
Distinguish UNION from UNION ALL and require compatible result shapes.
Set Operations and Subqueries
Stack compatible results and answer one question inside another query.
Start Chapter PracticeChapter plan
What you will be able to do
- Use UNION ALL and introductory subqueries.
- Study time
- 30–36 minutes, self-paced
- Course
- SQL for Data Analysis (Beginner)
- Practice order
- Four sets, completed in sequence
Chapter practice
Practice in chapter order
10 activities · 80% mastery target
Start set 1
Guided application
Set 2: Core Practice
Use scalar and list subqueries through a testable inner-query workflow.
Hands-on
Set 3: Workplace Task
Stack labeled product lists and find above-average orders in SQL.
Independent check
Set 4: Mastery Check
Place the final compound sort and independently find customers with shipped orders.