What are the differences between JDBC Prepared Statements and Statements?

What are the differences between JDBC Prepared Statements and Statements?

JDBC Prepared Statements are precompiled SQL statements that can be executed multiple times with different parameters, while Statements are used for executing simple SQL queries without precompilation. Prepared Statements offer better performance and security against SQL injection.

Can you explain why Prepared Statements are more secure?

Prepared Statements use parameterized queries, which means that user input is treated as data rather than executable code. This prevents SQL injection attacks, making them more secure than regular Statements.

Are there any performance benefits to using Prepared Statements?

Yes, Prepared Statements can improve performance, especially when executing the same query multiple times. Since they are precompiled, the database can optimize the execution plan, reducing overhead.

When should I use a Statement instead of a Prepared Statement?

You might use a Statement for simple, one-time queries where performance and security are not major concerns, or when you need to execute dynamic SQL that cannot be parameterized.