Add column to existing table

Many ways to add column to existing table in MySQL. If you r using GUI tools, add column to table in MySQL is easy. If you are using CLI, then here’s the command to add column in MySQL table.

To add column in existing table, you may refer to the 2 examples below:-
Example I: Add new varchar column to the end of the table

ALTER TABLE `tablename_here` ADD `new_column_name` VARCHAR( 255 ) NOT NULL ;

Example II: Add new integer column after an existing column in table

ALTER TABLE `tablename_here` ADD `new_column_name` INT NOT NULL AFTER `existing_column` ;

It’s simple to add column to existing table right? 

reference: http://www.techiecorner.com/560/mysql-how-to-add-column-to-existing-table/