Drop Column - MySQL Command

Definition: Drop column is used to remove a column from a given table. This also removes all data from the column. It is written as alter table [table name] drop column [column name];

Also Known As: MySQL Drop Column, Remove Column, Delete Column

Examples:

alter table icecream drop column flavor;

This removes the column "flavor" from the table called "icecream".

http://php.about.com/od/mysqlcommands/g/drop_column.htm