Introduction

In this lesson, you will learn SQL basics for beginners. SQL is used to store, manage, and retrieve data from a database in .NET applications.

What is SQL?

SQL (Structured Query Language) is used to interact with databases like SQL Server, MySQL, etc.

Common SQL Commands

SELECT (Read Data)

SELECT * FROM Students;

INSERT (Add Data)

INSERT INTO Students (Name, Age) VALUES ('Rahul', 22);

UPDATE (Modify Data)

UPDATE Students SET Age = 23 WHERE Name = 'Rahul';

DELETE (Remove Data)

DELETE FROM Students WHERE Name = 'Rahul';

Database Table Example

Real-World Use

• Store user data
• Manage product details
• Handle application data

Key Points

• SQL is used to interact with databases
• SELECT is used to fetch data
• INSERT, UPDATE, DELETE modify data

Internal Links

• Course Page: .NET Course for Beginners