What are JDBC prepared statements and how do they work?

What are JDBC prepared statements and how do they work?

JDBC prepared statements are precompiled SQL statements that can be executed multiple times with different parameters. They improve performance and security by preventing SQL injection.

Can you give me an example of how to use a prepared statement in Java?

Sure! Here's a simple example:

String sql = "INSERT INTO users (name, email) VALUES (?, ?);";
PreparedStatement pstmt = connection.prepareStatement(sql);
pstmt.setString(1, "John Doe");
pstmt.setString(2, "[email protected]");
pstmt.executeUpdate();

What are the benefits of using prepared statements over regular statements?

The benefits include improved performance due to precompilation, reduced risk of SQL injection, and easier handling of complex queries.

Are there any drawbacks to using prepared statements?

One potential drawback is that they can consume more memory if many prepared statements are created and not reused. Additionally, they may be less flexible for dynamic queries.