12.2.3 - JOIN – Combine Multiple Tables
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Practice Questions
Test your understanding with targeted questions
What does the JOIN operation do in SQL?
💡 Hint: Think about connecting pieces of data together.
What type of JOIN returns all records from the left table?
💡 Hint: Which JOIN includes all from the left side?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of a JOIN in SQL?
💡 Hint: Consider how you get information from different tables at once.
True or False: An INNER JOIN returns all rows from both tables, regardless of matching data.
💡 Hint: Think about what INNER means in terms of overlap.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Given three tables: users, orders, and payments, write a query that retrieves all users who made payments along with their order details. Use appropriate JOINs.
💡 Hint: Ensure you correctly link all three tables based on their respective foreign keys.
Describe a scenario where you might prefer using FULL JOIN over INNER JOIN and explain why.
💡 Hint: Think about comprehensiveness in reporting.
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