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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What does the next() method in ResultSet do?
💡 Hint: Think about moving through rows one by one.
Question 2
Easy
Is getString() used to retrieve integer values?
💡 Hint: Consider the name of the method and the data type.
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 purpose of the ResultSet interface in JDBC?
- To execute SQL statements
- To process data retrieved from database queries
- To establish database connections
💡 Hint: Think about where we work with data from queries.
Question 2
True or False: The method next() moves the cursor in the ResultSet to the previous row.
- True
- False
💡 Hint: Consider the direction of the cursor movement.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Write a complete JDBC program that retrieves student data using ResultSet and handles potential exceptions.
💡 Hint: Use try-with-resources for automatically closing resources.
Question 2
Suppose a student table has a column called 'email' that should be string but is being accessed with getInt(). Write a code snippet that would handle the exception appropriately.
💡 Hint: Always anticipate possible exceptions, especially when accessing columns with the wrong data type.
Challenge and get performance evaluation