SQL Aggregation Functions Test

SQL Aggregation Functions Test (Free Data Science MCQs)

SQL Aggregation Functions Test

A SQL Aggregation Functions Test helps learners practice SUM, AVG, COUNT, MAX, and MIN for real analysis tasks. Moreover, it improves understanding of grouped data and summary metrics, which are essential in analytics. Additionally, these tests prepare students for data-oriented projects. Since aggregation is used in dashboards and reports, mastering it becomes necessary. Therefore, this test strengthens both problem-solving and query-building skills. Furthermore, it supports confidence by offering structured examples and guided practice for beginners.

Study Material for Aggregation Queries

Core SQL Aggregation Concepts

Although many learners prefer a SQL aggregate functions test with example, others use the SQL aggregate functions test W3Schools format. Furthermore, those preparing for interviews often rely on aggregate functions in SQL with examples and SQL aggregate functions test interview questions. Some platforms also offer a SQL aggregate functions test Oracle option. Many students download SQL aggregate functions practice questions or an aggregate functions in SQL with examples PDF. Moreover, SQL GROUP BY Practice Questions provide essential hands-on experience.

Advanced Aggregation Learning

Meanwhile, advanced problem sets help learners refine HAVING and nested aggregation logic. Consequently, they develop stronger analytical accuracy.

SQL Aggregation Functions Test for Data Science

15 MCQs with Answers and Detailed Solutions

Total Questions: 15


1. Which SQL function returns the total sum of a numeric column?


2. Which function calculates the average of a column?


3. Which function returns the maximum value of a column?


4. Which function returns the minimum value of a column?


5. COUNT(*) counts:


6. COUNT(column_name) counts:


7. Which function counts only unique values in a column?


8. Aggregate functions are commonly used with:


9. Which clause filters groups after aggregation?


10. To get the total sales per region, you would use:


11. Which function would you use to find the number of distinct products sold?


12. Which of these is not an aggregate function?


13. To calculate average salary of employees by department:


14. MAX(salary) OVER(PARTITION BY department) returns:


15. Which function sums only non-NULL values of a column?

Quiz Results Summary

Total Questions: 15

Correct Answers: 0

Incorrect Answers: 0

Total Score: 0 / 30

Percentage Score: 0.00%

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