Additional Notes
Why use PreparedStatements to prevent SQL injection?
Track: Java
Topic: SQL for Java Devs
Focus: PreparedStatements
Java: PreparedStatements
Answer
PreparedStatements separate SQL logic from data, preventing injection.
PreparedStatements use placeholders instead of directly embedding user input, which means that SQL commands are predefined, and parameters are passed separately. This prevents malicious input from being executed as SQL code. For example, using `PreparedStatement pstmt = conn.prepareStatement("SELECT * FROM users WHERE username =?");` ensures that user input is treated as data, not executable code.
PreparedStatements use placeholders instead of directly embedding user input, which means that SQL commands are predefined, and parameters are passed separately. This prevents malicious input from being executed as SQL code. For example, using `PreparedStatement pstmt = conn.prepareStatement("SELECT * FROM users WHERE username =?");` ensures that user input is treated as data, not executable code.
Topics: Java PreparedStatements SQL for Java Devs