PL/pgSQL

PL/pgSQL is a programming language used to create stored procedures and functions within PostgreSQL databases. It allows database developers to write complex logic directly inside the database, enabling automation and efficiency for tasks like data validation, calculations, and conditional operations. Similar to other programming languages, PL/pgSQL supports variables, control structures, and error handling, but it's specifically optimized for interacting with database data. This makes it a powerful tool for building scalable, maintainable database applications by reducing the need for external code to perform routine database operations.