SQL

WHAT IS SQL?

• SQL Structured Query Language is a programming language designed to allow both technical and non-technical users to retrive, manipulate, and transform data from a database.

SQL DATABASE

• Is a database that provides safe and scalable storage for millions of websites and mobile applications.

SQL uses some database management systems:

• MICROSOFT SQL SERVER
• ORACLE
• SYBASE
• ACCESS
• INGRES

SQL Commands

create a database        CREATE DATABASE database_name
delete a database        DROP DATABASE database_name

• Operators

- equal                       =
- not equal                  <>
- greater than                >
- less than                   <
- greater than or equal       >=
- less than or equal          <=

• Reference