What was the primary concern of the DBA before implementing parameterized queries to prevent SQL injection?

• A. The performance might decrease significantly
• B. The SQL query could be vulnerable to SQL injection attacks
• C. The ORM framework might not support the changes
• D. The database may have insufficient security measures

Answer: (B)

The primary concern of the Database Administrator (DBA) before implementing parameterized queries is that the SQL query could be vulnerable to SQL injection attacks. SQL injection occurs when an attacker is able to manipulate the SQL queries that an application sends to the database, typically through input fields that are not properly sanitized. By using parameterized queries, DBAs can bind variables to SQL statements, which prevents attackers from injecting malicious SQL code into queries.

Parameterized queries ensure that the SQL statement's structure remains intact, regardless of the input provided by users. This mitigates the risk of SQL injection, which can lead to unauthorized data access, data manipulation, or even data loss. Therefore, the primary motivation behind adopting parameterized queries is to enhance the security of the database and the application, protecting it from potential harmful attacks.

The other concerns might be relevant in different contexts: performance impacts can happen depending on how the queries are structured, but the security benefits typically outweigh this; concerns about ORM frameworks not supporting changes or database security measures are less central to the immediate issue of SQL injection vulnerability.