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Common Functions in PostgreSQL

Introduction
1. Introduction
The COALESCE() function
The GREATEST() & LEAST() functions
The NULLIF() function
Summary

Instruction

Welcome to Part 5! In this part, we're going to learn about useful PostgreSQL functions that deal with NULLs. You're familiar with NULLs already, but this will extend your knowledge. Let's go!

Exercise

Click Next exercise to continue.