SQL for Java Devs – Page 9 – Sharp: NCLEX, Java & Python

Java: PreparedStatements

When might you choose plain Statements over PreparedStatements?

Why might you choose a Statement over a PreparedStatement?

How can PreparedStatements prevent SQL injection?

How would you explain a common mistake when using PreparedStatements in an interview?

How do PreparedStatements handle transactions?

What JDBC method executes a PreparedStatement that returns a ResultSet?

How do PreparedStatements handle complex SQL joins?

Why use PreparedStatements to prevent SQL injection?

How can JOINs help to prevent the N+1 query problem in JDBC?

What are the trade-offs of using complex JOINs in large datasets?