freeCodeCamp/guide/english/sql/index.md

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2018-10-12 19:37:13 +00:00
---
title: SQL
---
## SQL
SQL stands for Structured Query Language. It is the most common tool used to manipulate and manage data in a relational database (often referred to as a "SQL database").
SQL is commonly pronounced "sequel." Its most popular variants are MySQL, PostgreSQL, and SQLite - a version of SQL which is commonly used for prototyping. It introduced the concept of accessing many records with one single command, using SQL Queries.