Additional Notes
Why does a placeholder in a PreparedStatement matter in this design?
Track: Java
Topic: SQL for Java Devs
Focus: PreparedStatements
Java: PreparedStatements
Answer
To mark where parameters will be bound. Frame the concept in practical terms so you can explain it during interview discussion.
Placeholders (`?`) in a PreparedStatement denote where parameter values will be inserted. This allows parameters to be safely bound using methods like `setString` or `setInt`, preventing SQL injection. For example, in an e-commerce search, `SELECT * FROM products WHERE name LIKE?` lets you safely insert user input.
Placeholders (`?`) in a PreparedStatement denote where parameter values will be inserted. This allows parameters to be safely bound using methods like `setString` or `setInt`, preventing SQL injection. For example, in an e-commerce search, `SELECT * FROM products WHERE name LIKE?` lets you safely insert user input.
Topics: Java PreparedStatements SQL for Java Devs