Database Definition Language

Introduction

What is a Database Definition Language?

This is the programming language used to construct and alter the design of tables contained within a database. The most common form of DDL is Structured Query Language(SQL).

This language is not used to directly alter the data stored within a table, rather it is used to construct the framework within which data is contained.

 

 

 

CREATE TABLE

CREATE TABLE COMMAND

 

 

ALTER TABLE

ALTER TABLE COMMAND

 

 

DROP TABLE

DROP TABLE COMMAND