En la plataforma Eduonix está disponible totalmente gratis el siguiente curso sobre el manejador de base de datos relacional PostgreSQL.

https://www.eduonix.com/courses/Web-Development/Learn-Database-Design-using-PostgreSQL

Course Content
1 Course Intro
2 Relational Database Overview
3 PostgreSQL Overview
4 PostgreSQL vs MySQL
5 Install PostgreSQL & pgAdmin
6 XAMPP Installation
7 Using the psql Commaind Line
8 phpPgAdmin
9 Naming Conventions
10 Best Practices & Normalization
11 Structuring and Diagramming
12 Creating and Populating a Database
13 Database Import and Export
14 SQL Fundamentals
15 Select Statements
16 Insert, Update and Delete Statements
17 Table Joins
18 Putting it all together
19 String Functions
20 Basic Math Functions
21 Aggregate Functions & Group By
22 Union, In and Concat
23 Application UI
24 Connect To PostgreSQL
25 Select and Display Data
26 Adding Data
27 Update & Delete Data
28 Course Summary