Practice - Relational Algebra Introduction (Brief Overview of Operations)
Practice Questions
Test your understanding with targeted questions
What is the main function of the Union operation in Relational Algebra?
💡 Hint: Think about merging two lists without duplicates.
Explain what the Select operation does.
💡 Hint: How do you choose which rows to display from a table?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What operation combines unique rows from two tables?
💡 Hint: Consider how might you merge two separate lists.
True or False: The Cartesian Product operation often creates useful combinations of data.
💡 Hint: Think about how many combinations you'd get from a smaller example.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Given two tables of students, create a Union of both tables that includes only unique students enrolled.
💡 Hint: Check for the uniqueness of rows in both tables.
Create a query that selects employees from a table whose salaries are greater than 50,000 and projects just their names.
💡 Hint: Combine row filtering with column selection.
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Reference links
Supplementary resources to enhance your learning experience.