What is dynamic SQL statement caching in DB2, and how does it enhance security?

Dynamic SQL statement caching in DB2 refers to the process of storing frequently executed SQL statements in a cache memory. This feature improves performance as the database engine doesn't need to recompile these statements every time they are executed. Furthermore, it indirectly enhances security by reducing the exposure of SQL statements to potential attackers. Since the cached statements are already compiled and optimized, there is less risk of attackers exploiting vulnerabilities in the compilation process to execute malicious code or gain unauthorized access to the database.