PL/SQL (Procedural Language/SQL) is Oracle's answer to the need to combine SQL's data-manipulation power with traditional programming logic. It's like giving your database its own brain-with support for loops, conditionals, error handling and modular code. Everything runs inside the database, making it both fast and secure.
The language is block-structured and lets you build anything from simple functions to complex packages and triggers. It is particularly useful when you want to keep business logic close to the data, reducing the need to move data back and forth between application and database. This is sometimes referred to as the "SmartDB" paradigm-where the database not only stores data but also understands it.
PL/SQL has been around since the early 1990s and remains a cornerstone in many Oracle-based systems. So if you work with Oracle and want full control over your database logic, PL/SQL is a language you definitely want in your toolbox.