Database Integration with Node.js Mastery Hub: The Industry

In the context of "The Complete Node.js & PostgreSQL Mastery Course 2026," when integrating Node.js with PostgreSQL, which of the following approaches for managing database connections is most aligned with achieving high performance and scalability under heavy load, as emphasized in the "Industry Foundation" module?

Considering the "The Complete Node.js & PostgreSQL Mastery Course 2026" curriculum, what is the primary security vulnerability addressed by parameterized queries (prepared statements) when interacting with PostgreSQL from Node.js, and why is it a critical concern for industry-standard applications?

In the advanced topics of "The Complete Node.js & PostgreSQL Mastery Course 2026," when dealing with complex data transformations or aggregations that are best handled within the database, which Node.js integration pattern is most efficient for executing stored procedures or complex SQL functions in PostgreSQL?