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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does RIGHT JOIN accomplish?
💡 Hint: Think about which table is prioritized in a RIGHT JOIN.
Question 2
Easy
Write a SQL statement using FULL OUTER JOIN to find all customers and their orders.
💡 Hint: Remember it combines all records from both tables.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What type of records does RIGHT JOIN return?
- Only from the left table
- Only from the right table
- Both tables with priority on the right
💡 Hint: Focus on which table data is prioritized.
Question 2
FULL OUTER JOIN includes records from which tables?
- True
- False
💡 Hint: Recollect the definition of FULL OUTER JOIN.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given two tables: employees and departments, write a SQL query to find employees even if they are not assigned to any department. Include the department name if present.
💡 Hint: Think about focusing on employee data and what happens if they belong to no department.
Question 2
Create a query using FULL OUTER JOIN that lists all products and sales, but marks products not sold with NULL.
💡 Hint: Focus on ensuring every product appears even if it has not been sold.
Challenge and get performance evaluation