SQL for Java Devs – Page 5 – Sharp: NCLEX, Java & Python

Java: ResultSets and Mapping

What are potential issues with not closing a ResultSet?

How would you explain a common pitfall of managing transactions manually in JDBC in an interview?

How does PreparedStatement help in preventing SQL injection?

Why is joined row mapping harder than mapping one simple table?

How can you iterate through all rows in a ResultSet?

Explain manual Object-Relational Mapping for a ResultSet?

Why is it important to close a ResultSet?

How do you extract a strongly-typed value from a ResultSet?

What are the trade-offs of manual ORM in JDBC?

How can you safely close a ResultSet even if an exception occurs?