Why Does My MySQL PreparedStatement Result in a Syntax Error with the '?' Placeholder?

MySQL Syntax Error: Understanding the '?' Placeholder Misinterpretation

When executing a MySQL query using PreparedStatement, users may encounter the error "You have an error in your SQL syntax." This error often occurs due to the incorrect usage of the '?' placeholder.

In the provided code, the '?' placeholder is being used to substitute column values, but it's mistakenly replaced with the original query string. To resolve this issue, it's imperative to invoke the PreparedStatement.executeQuery() method without any arguments. By doing so, the prepared query will be executed with the bound values instead of the original query string.

It's crucial to highlight that the code is prone to resource leakages. To rectify this, it's necessary to adhere to the established JDBC coding pattern of meticulously closing Connection, Statement, and ResultSet objects within the finally block of the try block. By implementing this approach, the database will be prevented from exhausting its resources, which can ultimately lead to application failures. For more comprehensive guidance on JDBC fundamentals, refer to the official JDBC basic tutorial.

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