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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the purpose of using PreparedStatement in JDBC?
💡 Hint: Think about how it deals with user inputs.
Question 2
Easy
What should you always do after executing a database operation?
💡 Hint: Why is this important for the application?
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 is the main advantage of using PreparedStatement over Statement?
- Prevent SQL injection
- Simpler syntax
- Faster execution
💡 Hint: Consider security vs. ease of use.
Question 2
True or False: Connection pooling decreases the load on the database.
- True
- False
💡 Hint: Think about how many connections you open per user.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You are tasked to refactor a legacy Java application that uses raw SQL queries with Statement. Implement the necessary changes to secure it using PreparedStatement.
💡 Hint: Remember to replace concatenated inputs with placeholders.
Question 2
Design a simple application that connects to a database and implements connection pooling using HikariCP. Describe your implementation steps.
💡 Hint: Think about what properties are needed for HikariCP setup.
Challenge and get performance evaluation