Functions & Operators in PostgreSQL: Logical Operators || PostgreSQL Full Playlist #58

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Learn PostgreSQL Logical Operators (AND, OR, NOT) with examples, truth tables & queries | PostgreSQL Tutorial #58

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Description
In this video, we dive into Logical Operators in PostgreSQL, an essential part of writing powerful and efficient queries. Logical operators help us combine multiple conditions and make decisions in our SQL statements.

We’ll cover the three main operators — AND, OR, and NOT — along with PostgreSQL’s three-valued logic system (TRUE, FALSE, and NULL). You’ll also learn how these operators work through truth tables and practical examples using an employees table.

📌 What you’ll learn in this video:

Introduction to PostgreSQL Logical Operators
Detailed explanation of AND, OR, and NOT
How NULL affects logical operations
Using logical operators in WHERE clauses
Real-world examples with CREATE TABLE and INSERT statements

By the end of this tutorial, you’ll have a strong understanding of how logical operators work in PostgreSQL, enabling you to write more accurate and efficient queries.

👉 Don’t forget to check out the Full PostgreSQL Playlist for a complete step-by-step guide on mastering PostgreSQL.

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📌 Chapters Covered:
00:00 - Introduction
00:28 - AND Operator
01:03 - OR Operator
01:36 - NOT Operator
02:00 - AND Truth Tables
02:25 - OR Truth Tables
02:42 - NOT Truth Tables
02:54 - Setup Practical Examples
03:07 - AND Operator Example
03:29 - OR Operator Example
03:45 - NOT Operator Example
03:58 - Key Points to Remember
04:14 - Conclusion