Can you explain what the SQL structured data processing language is?

SQL (Structured Query Language) is a language for structured data processing designed for working with relational databases. It allows creating, modifying, and managing data, as well as executing queries to retrieve information.

Main features of SQL:

• Data definition language (DDL): creating, modifying, and deleting database tables and other objects.
• Data manipulation language (DML): inserting, updating, deleting, and selecting data.
• Data control language (DCL): granting and revoking user permissions.

An example of a simple SQL query to select all users from the Users table:

SELECT * FROM Users WHERE Age > 18;

SQL is widely used in various programming languages, including C#, for interacting with databases.