PostgreSQL Fundamentals

• An understanding of basic IT and data concepts
• No prior SQL or database experience is required
• Familiarity with using software tools on Windows/Linux is helpful

Audience

• Database beginners and analysts
• Developers starting with PostgreSQL
• Professionals managing or exploring relational databases

PostgreSQL is a powerful, open-source relational database system known for its stability, feature set, and extensibility.

This instructor-led, live training (online or onsite) is aimed at beginner-level professionals who wish to learn how to use PostgreSQL for creating databases, writing SQL queries, manipulating data, and managing tables using both SQL commands and PGAdmin. The course also provides a basic introduction to the Timescale extension for time-series data.

By the end of this training, participants will be able to:

• Understand relational database principles and PostgreSQL architecture.
• Install, configure, and navigate PostgreSQL and PGAdmin.
• Write and run SQL queries for data selection, filtering, grouping, and joining.
• Manipulate data with SQL statements and manage database objects.
• Create and manage views and explore PostgreSQL extensions like Timescale.

Format of the Course

• Interactive lecture and discussion.
• Lots of exercises and practice.
• Hands-on implementation in a live-lab environment.

Course Customization Options

• To request a customized training for this course, please contact us to arrange.

Introduction to Relational Databases and PostgreSQL

• What is a relational database
• Overview of PostgreSQL and its ecosystem
• Use cases and advantages of PostgreSQL

Installing and Configuring PostgreSQL and PGAdmin

• Installing PostgreSQL on Windows/Linux
• Installing and using PGAdmin for GUI access
• Creating connections and managing users

Understanding PostgreSQL Architecture

• PostgreSQL server components and memory usage
• Database cluster structure and file layout
• Processes and services

Creating and Structuring Databases

• Creating databases and tables
• Understanding data types
• Using PGAdmin to manage database objects

Writing Basic SQL Queries

• Using SELECT, WHERE, ORDER BY, LIKE, BETWEEN, and NULL
• Sorting and filtering query results

Using GROUP BY and HAVING

• Grouping rows and calculating aggregates
• Filtering groups with HAVING

Working with Complex Conditions

• Using EXISTS, IN, ANY, ALL
• Nesting subqueries

JOIN Operations in PostgreSQL

• INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN
• SELF JOIN and use cases

Using Built-in SQL Functions

• Mathematical functions
• String manipulation functions
• Date and time operations

Data Manipulation Statements

• INSERT: inserting new rows
• UPDATE: modifying existing data
• DELETE: removing rows from tables

Working with Views

• Creating and querying simple views
• Views with subselects
• Benefits and limitations of views

Introduction to the Timescale Extension

• What is TimescaleDB and when to use it
• Installing and enabling Timescale extension
• Creating hypertables and inserting time-series data

Summary and Next Steps