Understanding the Difference Between Statement and PreparedStatement in JDBC

When it comes to Java Database Connectivity (JDBC), the main difference between a Statement and a PreparedStatement lies in their handling of SQL queries.

Statement in JDBC

A Statement in JDBC is used to execute static SQL queries. These queries are generally hardcoded within the application code. While a Statement provides basic functionality for executing queries, it is prone to SQL injection attacks as input values are directly concatenated into the SQL queries.

PreparedStatement in JDBC

On the other hand, a PreparedStatement in JDBC is a precompiled SQL statement that allows for parameterized queries. This means that placeholders are used for input values, improving security and performance. PreparedStatement is recommended for executing dynamic SQL queries with user input.

Overall, using a PreparedStatement in JDBC is considered a best practice for executing SQL queries, as it helps prevent SQL injection and enhances performance by reusing query execution plans.