gaspersic/freeCodeCamp
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Described usage of ALTER TABLE statement (#30349)

Browse Source 
Description of where the ALTER TABLE statement can be used in a RDBMS
This commit is contained in:
Nikhat Zaidi
2019-03-06 00:12:56 +05:30
committed by The Coding Aviator
parent 3b07316da1
commit 04abf70efc
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
guide/english/sql/sql-alter-table-statement/index.md
View File

@ -6,7 +6,7 @@ title: SQL Alter Table Statement
## Introduction ## Introduction
This guide will introduce you to and attempt to explain some of the basics of the SQL alter table functions within a relational database. This guide will introduce you to and attempt to explain some of the basics of the SQL alter table functions within a relational database.
**IMPORTANT Safety Tip: ALWAYS backup your data before making changes!** ALTER TABLE statement is used to add, remove, change datatype or rename columns. It can be also used to add or remove the constraints of the table.**IMPORTANT Safety Tip: ALWAYS backup your data before making changes!**
We will be using MySQL for all examples throughout this freeCodeCamp SQL guide. The reasons for selecting MySQL are 1) it is very commonly used on websites for the backend database, 2) it's free, and is fun and easy to use. We will be using MySQL for all examples throughout this freeCodeCamp SQL guide. The reasons for selecting MySQL are 1) it is very commonly used on websites for the backend database, 2) it's free, and is fun and easy to use.