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SQL types (#20673) 

* SQL types

Added DDL and DML as type of SQL

* Add the third part of SQL.....
pull/34184/head
Ishan 2018-11-03 06:00:03 -06:00 committed by Niraj Nandish
parent 9e32a9acd1
commit b23d8e6dbb
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guide/english/sql/index.md
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@ -6,3 +6,9 @@ title: 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.
### SQL can be divided into three parts:
1. The Data Manipulation Language (DML) is for working with the database tables.
2. The Data Definition Language (DDL) is for working with the data in the tables.
3. The Data Control Language (DCL) is for access control to the database.