SQL stands for Structure Query Language. SQL is a programming language that is used to manage relational databases. SQL commands retrieve, create, update, and delete data from a database.
Data Definition Language
Data Definition Language commands are used to define and modify database structures.
Command | Description |
---|---|
CREATE DATABASE School | Creates a database 'School' |
DROP DATABASE School | Deletes the database 'School' |
CREATE TABLE Student | Creates a table 'Student' |
ALTER TABLE Student ADD Email NVARCHAR(50) | Deletes the database 'Student' |
DROP DATABASE Student | Deletes the database 'Student' |
DROP DATABASE Student | Deletes the database 'Student' |