Data Definition Language
Explore the core Data Definition Language commands used in SQL to define database architecture. Understand how to create new tables, modify existing structures, and remove tables safely. This lesson helps you build a solid foundation for managing databases with key DDL operations essential for designing efficient, reliable data storage.
Imagine we’re architects, but instead of buildings, we design structures to hold information. Before we can furnish a house with sofas and tables (our data), we first need to build the foundation, walls, and rooms. In the world of databases, this is exactly what the data definition language (DDL) allows us to do. It’s the set of tools we use to build and manage the very blueprint of our database. ...