# SQL (Structured Query Language)

 SQL has a variety of commands for working with relational databases, including `SELECT, INSERT, UPDATE,` and `DELETE`. These commands can be combined to perform complex operations on large datasets.

 SQL also includes a number of functions for performing calculations and manipulating data. Some common functions include COUNT, SUM, AVG, and MAX/MIN.

So the relational databases and SQL are fundamental tools for managing and analyzing data in a wide range of industries and applications. 

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## SQL Queries lessons

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##  Database Management

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`Resources`

1. <https://www.w3schools.com/sql/>
2. <https://www.udacity.com/course/sql-for-data-analysis--ud198>
3. <https://sqlbolt.com/lesson/select_queries_introduction>
4. <https://teachcomputerscience.com/relational-databases-and-sql/>