SQL for Java Devs · interview question
What method should you use to move the cursor to the first row of a ResultSet object?
Multiple choiceEasychapter-8-curatedpremiumsql-for-java-devsresultsets-and-mapping
Answer and explanation
Correct answer
C. First()
Why
The first() method moves the cursor to the first row in the ResultSet. This is useful when you need to reprocess a ResultSet from the beginning.
Test yourself on SQL for Java Devs
A free test with instant, explained results. No account needed.
More SQL for Java Devs questions
- How can JDBC transactions help maintain data integrity during an e-commerce checkout process?
- What would be the effect of not closing a PreparedStatement in a Java application?
- In JDBC, how do you ensure that SQL injection is prevented when executing a query that searches for a user by email?
- Why do teams use SQL JOINs to fetch relational data in a single query in production code?
- What should a repository method mainly encapsulate?
- How can you prevent the N+1 query problem when retrieving a list of orders with their customer details?