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SQL Tutorial 2023 - Learn SQL Online for Free

SQL is a standard language for storing, manipulating, and retrieving data in databases. This SQL tutorial is a concise and easy-to-follow guide designed for individuals new to Structured Query Language (SQL). It covers the fundamentals of SQL, a powerful programming language used for managing relational databases. This online SQL tutorial introduces key concepts such as creating, retrieving, updating, and deleting data in a database using SQL queries.

If you are struggling to find how to learn SQL with no experience. AlmaBetter’s SQL tutorial for beginners provides a step-by-step journey through SQL concepts, from the fundamentals to advanced topics. Here you will learn SQL online from scratch. You'll learn how to create, retrieve, update, and manage data in relational databases. With practical examples and clear explanations, you'll gain the knowledge and confidence needed to work with SQL in real-world scenarios. Let's dive in and unlock the power of SQL together.

The Modules covered in our SQL Tutorials:

Getting started with SQL
Creating and Managing Databases in Postgres
DDL Commands in SQL
DML Commands in SQL
Clauses in SQL
Filtering in SQL
JOINS in SQL
SQL Advanced Topics

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Module 1

Getting started with SQL

Introduction to SQL

What is the Use of SQL?

Types of SQL DataBases

Module 2

Creating and Managing Databases in Postgres

What is PostGreSQL?

Create and Delete Database in Postgres

Data Types in SQL

DDL and DML Commands in SQL

Module 3

DDL Commands

Creating Table in SQL

Alter Table In SQL

Difference Between DROP and TRUNCATE in SQL

Module 4

DML Commands

SELECT Statement in SQL

INSERT INTO SQL Statement

UPDATE Query in SQL

SQL DELETE

MERGE Statement in SQL

Module 5

Constraints in SQL

NOT NULL in SQL

PRIMARY KEY in SQL

FOREIGN KEY in SQL

UNIQUE KEY in SQL

CHECK Constraint in SQL

Module 6

Clauses in SQL

Order of Execution in SQL

FROM Clause in SQL

Where Clause in SQL

Group by Clause in SQL

HAVING CLAUSE in SQL

ORDER BY Clause in SQL

Module 7

Filtering in SQL

SQL Operators

AND and OR operators in SQL

Equal and Not Equal to in SQL

BETWEEN AND IN Operator in SQL

Module 8

JOINS in SQL

Basics of Joins

Inner Join in SQL

Left Join in SQL

Right Join in SQL

Full Outer Join in SQL

Self Join in SQL

Module 9

SQL Advanced Topics

Subqueries in SQL

Types of Subqueries in SQL

Window Function in SQL

Common Table Expression in SQL

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