PL/pgSQL (PostgreSQL's procedural language)

PL/pgSQL is a procedural programming language used within PostgreSQL, a popular open-source database system. It allows users to write complex database functions and scripts that can perform tasks like calculations, data manipulation, and control structures (such as loops and conditionals). By combining SQL commands with programming logic, PL/pgSQL enables more structured and efficient data handling, making it easier to automate repetitive tasks or implement business rules directly within the database. This enhances the functionality and performance of database applications, allowing for more sophisticated data management and operations.