Gary needs a specialized IPS to limit his exposure to SQL injection attacks against his web server exposed to the public network. He should consider purchasing an ____________?

SQL injection exploits a security vulnerability occurring in the database layer of an application. In simple words, it is a code injection technique.
The vulnerability appears when user input is not right in SQL.  SQL injection attacks can also be called SQL insertion attacks. Blind SQL injection might help to reduce the attacks. It is used when a web application is vulnerable to an SQL injection. For more information, please go to this page.