Database Design and Basic SQL in PostgreSQL

PostgreSQL Tutorial: Definition, Commands, & Features | Simplilearn

PostgreSQL Database Administration Masterclass

PostgreSQL Tutorial for beginners

How to Use the PostgreSQL Cast Function: Steps Explained

How to Use PostgreSQL Array Functions: Explained (with code)

PostgreSQL Performance Tuning and Optimization Guide - Sematext

PostgreSQL High-Performance Tuning and Optimization

SQL Server Performance Tuning made simple