Master SQL: From Beginner to Pro in Under 2 Hours (2025)

What you will learn:

Relational Database Fundamentals and PostgreSQL Setup
Data Manipulation: INSERT, UPDATE, DELETE
Table Design and Management: Primary & Foreign Keys, Data Types
Efficient Data Retrieval with SELECT, WHERE, and ORDER BY
Advanced Querying: Functions, Operators, CASE Statements
Mastering SQL JOINs: INNER, LEFT, RIGHT, FULL
Data Aggregation and Analysis: SUM, AVG, COUNT, GROUP BY, HAVING
Advanced SQL Techniques: Subqueries, CTEs, Self-Joins
Practical Data Management & Problem Solving
Building a Strong Foundation for Data-Driven Roles

Description

Unlock the power of SQL in record time! This intensive course provides a fast-track to mastering SQL and PostgreSQL, equipping you with the practical skills needed for data-driven roles. You'll begin by grasping fundamental relational database concepts and setting up your PostgreSQL environment. We then dive into hands-on exercises, building your proficiency with data manipulation commands like INSERT, UPDATE, and DELETE, and learning to design efficient database tables.

We'll progress to mastering data retrieval using SELECT statements, filtering with WHERE clauses, and organizing results with ORDER BY. You'll confidently use advanced SQL functions for string and date manipulation, applying logical operators and CASE statements to dynamically refine queries. The course covers joining multiple tables with INNER, LEFT, RIGHT, and FULL JOINs to seamlessly integrate data from various sources.

Further, we'll explore advanced data analysis techniques. You'll learn data aggregation functions (SUM, AVG, COUNT), grouping data effectively using GROUP BY and HAVING, and delving into the intricacies of subqueries and Common Table Expressions (CTEs). By the end, you'll have the expertise to tackle complex data challenges and create insightful reports.

Designed for beginners and experienced professionals alike seeking to enhance their SQL and PostgreSQL skills, this course offers a practical, project-based approach that delivers quick results. Enroll now and transform your data skills!

Curriculum

Introduction: Database Setup & Core Concepts

This section lays the groundwork. You'll start with an introduction to the course and its contents, then dive into essential database concepts. We'll guide you through setting up PostgreSQL on both Windows and Linux operating systems, ensuring you have a working environment ready for practical application. Lectures cover introductory concepts, the course's table of contents, essential notes, core database ideas, and the practical setup on different operating systems.

Data Handling: Tables and Data Manipulation

Here, you will learn the practical aspects of data management within your database. You’ll explore different data types, learn how to efficiently create database tables, and master the art of inserting, updating, and deleting data. We’ll also cover essential commands for managing existing datasets, and learn how to truncate and drop tables when necessary. Lectures cover the detailed nuances of data types, table creation and manipulation, data insertion and dataset creation.

SQL Fundamentals: Data Retrieval & Modification

This section builds your core SQL skills. You'll master the SELECT statement for retrieving data, employing WHERE clauses for filtering and ORDER BY for sorting. You’ll also learn to modify existing data using UPDATE and DELETE statements, while understanding the importance and practical use of database transactions. We'll also discuss the temporary nature of select query results. Lectures cover retrieving data with the SELECT statement, filtering using the WHERE clause, sorting with ORDER BY, update and delete statements and database transaction management.

Advanced SQL: Functions, Operators & Conditional Logic

Expand your SQL capabilities. This section focuses on mastering SQL functions for string and date manipulation. You'll learn to use logical operators and leverage the power of CASE statements for conditional logic in your queries. We'll cover concepts and examples for logical operators, string functions, date functions and the implementation and usages of CASE statements. Lectures showcase the practical application and examples of each concept.

Working with Multiple Tables: JOIN Operations

Learn to integrate data from different tables using SQL JOINs. This section covers the fundamentals of primary and foreign keys and how to use them to efficiently join tables. We'll explore INNER, LEFT, RIGHT, and FULL JOINs, understanding their distinctions and practical applications. Lectures cover key concepts, dealing with data redundancy, using INNER, LEFT, RIGHT, and FULL JOINs to link data from multiple tables.

Data Analysis: Aggregation & Grouping

This section introduces you to data analysis techniques. You'll master data aggregation functions such as SUM, AVG, and COUNT, and learn how to group and filter data with GROUP BY and HAVING clauses for insightful analysis. Lectures focus on utilizing aggregation functions (SUM, AVG, COUNT) and the effective use of the GROUP BY and HAVING clauses for comprehensive data analysis.

Mastering Advanced SQL: Subqueries, CTEs & Self-Joins

This advanced section covers sophisticated query techniques. You'll learn to use subqueries, Common Table Expressions (CTEs), and self-joins to tackle complex data challenges and create comprehensive reports. The lectures delve into self-joins, CTEs, and the practical implementation of subqueries, including using them in conjunction with the WITH clause for complex UPDATE operations.