2.NULL AND DEFAULT #database #postgresql #sql #table

In this video, we'll dive into the world of NULL and DEFAULT in PostgreSQL. If you've ever wondered what NULL really means, or how to set a default value for a column in a PostgreSQL table, this video is for you. We'll start with the basics, exploring how NULL represents the absence of a value and how DEFAULT can be used to specify a default value for a column. From there, we'll walk through some practical examples, including how to create tables with NULL and DEFAULT constraints, how to insert data using these constraints, and how to update existing data. Along the way, we'll highlight some common pitfalls to watch out for and share some best practices for working with NULL and DEFAULT in your PostgreSQL databases. Whether you're a beginner or an experienced PostgreSQL user, this video will give you a deeper understanding of these powerful concepts.
#database #postgresql #sql #table