About
Course Introduction
Welcome to this comprehensive course on PostgreSQL, one of the most powerful and widely-used open-source relational database management systems (RDBMS). This course is designed to take you from a complete beginner to a confident user, capable of designing, managing, and optimizing databases for a wide range of applications. Whether you are a developer looking to build robust applications, a data analyst needing to store and query large datasets, or a student eager to master a fundamental skill, this course provides the practical knowledge you need to succeed. We will cover everything from basic SQL queries to advanced database administration tasks, all through hands-on exercises and real-world examples.
Course Objectives
Upon completion of this course, you will be able to:
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Understand Relational Database Concepts: Grasp the core principles of relational databases, including tables, columns, rows, and relationships.
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Master SQL Fundamentals: Write and execute basic to intermediate SQL queries for data retrieval, insertion, updating, and deletion.
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Design and Structure Databases: Learn how to create well-structured database schemas using data types, constraints, and keys.
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Perform Data Management Tasks: Effectively manage data using transactions, backups, and restores.
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Optimize Database Performance: Understand and apply techniques for improving query performance using indexes, views, and execution plans.
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Work with Advanced Features: Utilize advanced PostgreSQL features such as JSONB, window functions, and Common Table Expressions (CTEs).
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Connect to Applications: Integrate PostgreSQL with programming languages like Python or Node.js to build dynamic, data-driven applications.
Course Outline & Key Topics
Module 1: Getting Started with PostgreSQL
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Introduction to relational databases and PostgreSQL.
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Installation and setup of PostgreSQL and pgAdmin.
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Basic command-line tools (
psql). -
Creating your first database and table.
Module 2: SQL Fundamentals
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SELECTstatement for data retrieval. -
Filtering data with the
WHEREclause. -
Sorting results with
ORDER BY. -
Using aggregate functions like
COUNT,SUM, andAVG. -
Grouping data with
GROUP BYand filtering groups withHAVING.
Module 3: Data Definition and Manipulation
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Data types in PostgreSQL (e.g.,
INT,TEXT,DATE,NUMERIC). -
Creating, altering, and dropping tables.
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INSERT,UPDATE, andDELETEstatements. -
Understanding constraints (
PRIMARY KEY,FOREIGN KEY,NOT NULL,UNIQUE).
Module 4: Joins and Relationships
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Understanding different types of joins:
INNER JOIN,LEFT JOIN,RIGHT JOIN,FULL OUTER JOIN. -
Joining multiple tables.
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Using aliases for tables and columns.
Module 5: Advanced SQL Techniques
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Subqueries.
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Common Table Expressions (CTEs).
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Window functions for advanced analytics.
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Working with dates and timestamps.
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String manipulation functions.
Module 6: Database Design & Normalization
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Principles of database design.
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Normalization (1NF, 2NF, 3NF).
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Designing a sample database schema.
Module 7: Database Administration and Performance
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Understanding and creating indexes.
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Analyzing query performance with
EXPLAIN. -
Managing users and permissions.
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Backup and restore strategies.
Module 8: Advanced PostgreSQL Features & Application Integration
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Using JSONB data type for flexible schemas.
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Creating views and materialized views.
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Introduction to stored procedures and functions.
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Connecting PostgreSQL to a programming language (e.g., Python using
psycopg2).
Training Methodology
Pathways Training and consulting adopts the newest techniques of human resources Training and consulting and, with the following:
- Theoretical lectures are delivered via PowerPoint and visual displays (videos and short films)
- Making scientific evaluation to the trainee (before and after)
- Brainstorming and role-playing
- Using case studies related to the scientific material being delivered and the trainees` work.
- The participants get the scientific and practical material printed and on CDs and Flash memories.
- Preparing records and reports of the participants` attendance and results, with a general evaluation of the training program.
- A group of the best trainers and experts in all fields and specialties professionally prepares the scientific material.
- After finishing the course, the participants get certificates of attendance signed, certified, and issued by pathways Training and consulting.
- Our training programs start at 9:00 o`clock in the morning and end at 2:00 in the afternoon, with snack buffet during the lectures.
