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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does SQL stand for?
💡 Hint: Think about the terms used for working with databases.
Question 2
Easy
Write a SQL query to find the lowest salary from the employees table.
💡 Hint: You need to order the salaries, but which order is needed for the lowest?
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 SQL statement do we use to retrieve specific columns from a table?
- SELECT
- GET
- FIND
💡 Hint: Think of the word that indicates choosing something from a group.
Question 2
True or False: The AVERAGEIF function in Excel can ignore empty cells.
- True
- False
💡 Hint: Does this function include blank cells in its calculations?
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a SQL query to find the second highest salary from the employees table without using the LIMIT clause.
💡 Hint: Think about how you can exclude the highest salary in your subquery.
Question 2
Create a complex Excel formula that calculates the average sales only for products sold over 50 units in the range B1:B20.
💡 Hint: Use a condition to filter your range before averaging it.
Challenge and get performance evaluation